Abstract: A column assembly has an elongated tubular member. A wall end assembly has an elongated tubular member. A flexible interface connects the column assembly to the wall end assembly. The flexible interface includes a spring pack assembly having a disc spring, an elongated male fastening member, a female fastening member, and an absorbing layer. The male fastening member extends through the spring pack hole into the female fastening member to connect the column assembly to the wall end assembly with the female fastening member and to hold the male fastening member in place.

Abstract: An anchor track for use with a holdown anchor and an anchor assembly. The anchor track has an upwardly opening channel, a first end, and a second end. The anchor assembly is slidable within the upwardly opening channel between the first and second ends to a desired position when the anchor track is at least partially embedded in concrete. The anchor assembly extends upwardly from inside the upwardly opening channel to the holdown anchor and is couplable to the holdown anchor when the anchor assembly is positioned adjacent to the holdown anchor.

Abstract: Method of producing a body (1) for bar feeders, wherein it comprises a first molding step (A) carried out with the aid of a first molding material (M1) in a mold (20) jointly with an overmolding step (B) of a countermold (50), the shape of the mold (20) and/or the shape impressions of the countermold being conceived to achieve in an integral way at least one structural and/or functional element of the said bar feeder.

Abstract: The invention is directed to a toolless screw including a body portion which comprises a shaft portion and a screw portion which includes a shank portion and a tip portion. The shank portion includes at least two helical threads which extend off the shank either at different angles, different distances, or a combination thereof. The tip portion is positioned at an end of the shank portion and has a diameter which is less than the diameter of the shank portion and extends to a point. The body portion is integrated with a screw portion at the end of the shank portion which is opposite the end where the tip portion is positioned.

Abstract: A lifting system for a concrete component comprises a void former incorporated into the component during casting and which provides within the component a void which receives a locking pin of a lifting anchor assembly which is locked within the void by rotation of a locking pin. The lifting anchor assembly has a visual indicator to indicate when the pin is in its locked condition within the void, and a pivotal lifting shackle of the assembly is prevented from movement into a position in which lifting can take place until the pin is in its locked condition. Preferably a base of the void former is configured to retain components of a jacking system by which a concrete slab used for road repair can be jacked into a level configuration with the remainder of the roadway when it has been positioned by use of the lifting system.

Abstract: A lifting and jacking apparatus including a void former configured for embedment in a concrete slab before pouring of the concrete slab and a lifting bail removably insertable in and securely attachable to the void former. The void former includes a built in jacking screw configured to assist in adjusting the height of the concrete slab.

Abstract: The present invention relates to a profiled rail (2) for fastening to a formwork (5) for at least partially embedding in concrete. The profiled rail (2) is formed in a substantially C-shaped manner along a profiled rail longitudinal axis, wherein a plurality of holes (24) are formed in the rail back (21). Plugs (1) are inserted into some of the holes (24), wherein each plug (1) has a cap section (12) and an adjoining through section (10). The through section (10) fits through the respective hole wherein the cap section butts against the rail back (21). The plug (1) has a feed-through region (13) through which an elongate connecting element (4) can be pieced being guided by the feed-through region (13). The connecting element (4) is preferably a nail or a screw and connects the plug (1) to the formwork (5) holding the profiled rail on the formwork (5).

Abstract: The present invention relates to a variable fastener for fixing a curtain wall, enabling a vertical member of a curtain wall unit to be coupled to an end portion of a building slab (S), wherein the variable fastener comprises: a first bracket fixed to the end portion of the slab (S); and a second bracket, one side of which is coupled to the vertical member of the curtain wall unit, and the other side of which is coupled to the first bracket, so as to transfer the load of the curtain wall unit to the slab (S). The first bracket includes a planar base portion fixed to the end portion of the slab (S), and a support portion formed on the front end of the base portion so as to be higher than the upper surface of the base portion.

Abstract: This application relates to the field of reveal architectural panels and a tool/clamp for assembly thereof. The apparatus and method replace prior art assembly methods and fasteners with adhesives and a dedicated particularly designed clamp to facilitate assembly. The frame members are modified to facilitate assembly with adhesive sealants and removal of mechanical fasteners.

Abstract: In a column base joint structure, an anchor bolt and a column installed upright on a groundsel are tightly joined using groundsel-side and column-side hardware pieces. The groundsel-side hardware piece includes groundsel-embedded and upper fitting tenon portions. A fitting hole for the upper fitting tenon portion of the groundsel-side hardware piece is formed in a base of the column. The column-side hardware piece includes a lower projecting portion projecting downward from a top face portion to the inside of the fitting hole, and a column-embedded portion positioned above the top face portion. A pin locking hole in the upper fitting tenon portion of the groundsel-side hardware piece and a pin locking hole in the lower projecting portion of the column-side hardware piece are mutually aligned, a driftpin is hammered into the aligned pin locking holes, and the anchor bolt and the column are thereby tightly joined to each other.

Abstract: A front adjustable wall panel mounting device that is adjustable from the front of a wall is disclosed. The front adjustable wall panel mounting device has a fixed channel configured to be coupled with a wall frame and a moving channel configured to be coupled with wall panel mounting hardware. The fixed channel and the moving channel are configured to be nested together. The tilt of the wall panel is adjusted by turning first or second adjustment bolts. The depth of the wall panel can be adjusted by turning both the first and second adjustment bolts in the same direction, by the same amount. The vertical height of the wall panel can be adjusted by turning the third adjustment bolt. A thin wrench can be inserted into the wall panel gap, engage and turn the adjustment bolt.

Abstract: An apparatus with multiple components to create a system capable of holding foundation bolts and foundation rebars prior to pouring concrete. The apparatus consists of [1]A ? inch thick by one inch wide by ten inch length steel plate bent and twisted in a manner to hold both bolt and rebars. [2] A square steel tube one inch by one inch by one inch with ? inch wide by ½ inch deep notch to be used in conjunction with above mentioned strong arm. [3] A ? inch thick by one inch wide by seven inch length steel plate with the top portion bent over one inch with a ? inch hole to accommodate a foundation bolt and two ? inch notches to hold top and bottom rebar. [4] A ? inch by 20 inch steel rod bent in a described manner to hang the top and bottom rebars from above described strong arm and independent of claim 2. [5] A ? inch by 6 inch steel rod bent in a described manner as to hold 2 foundation rebars independent of components 1 through 4.

Abstract: A decorative assembly and a kit for creating a plurality of decorative assemblies including at least one foundation piece, at least one fanciful element and at least one connector to couple the fanciful element to the foundation piece.

Abstract: In an anchor for use in a construction panel which includes upper and lower cover plates, wherein the anchor includes a cylinder body, a displacement body and a cement container provided with desired rupture locations and installed in the cylinder body and the cylinder body is provided with engagement elements for extending behind the upper cover plate, the cement container includes at least two chambers separated by an intermediate wall and is provided with an upper and a lower opening each closed by a thin-walled rupturable foil, with the intermediate wall being also rupturable by the displacement member upon movement thereof into the cylinder body.

Abstract: A connection between an anchor bolt and an anchor bolt holder that is economically efficient to produce and simple to use. This object is achieved by forming the anchor bolt holder from sheet metal and shaping the anchor bolt holder so that it can be formed on an automated die with a minimum of unused material.

Abstract: A connector for connecting wall studs of two adjacent floors in a light frame building structure, the connector having a first attachment tab, a seat member, a diagonally slanted support leg, and a second attachment tab, all substantially planar. The connector is intended to be paired and the paired connectors joined by an elongated tie member that pierces the sill plates of the intervening floor structure.

Abstract: A lifting mechanism for a concrete structure is provided through means of a void former and anchor assembly which it cast in place to provide an accurate recess in the structure having two or more spaced divergent anchors therein. The anchors define annularly aligned apertures within the recess. A lifting shackle of an arcuate configuration complimental with that of the recess is received within the recess and carries an arcuate locking bolt extendable through the aligned apertures.

Abstract: In an anchor for use in a lightweight construction panel including a support core provided at opposite sides with upper and lower cover plates, wherein the anchor comprises a cylindrical body having a bottom and including a cement containment and a displacement body for moving, upon insertion of the displacement body, engagement elements of the cylindrical body outwardly and causing the cement to be released from the containment and be directed via passages provided by the anchor into areas next to the top and bottom plates of the lightweight construction panel, where the cement solidifies for firmly connecting the anchor to the lightweight construction panel.

Abstract: A ductile seismic shear key construction including a concrete support, a concrete shear key supported on the concrete support, a generally vertical reinforcement bar in and extending between the concrete support and the concrete shear key and anchored in the concrete support, and an isolation key. The isolation key is in and at the base of the concrete support and adjacent the reinforcement bar. The bar can be one of the two legs of a downwardly-disposed U-shaped bar. The other leg, if present, is also in and extends between the concrete support and the shear key and is anchored in the concrete support; and a second isolation key is in the concrete support at the base thereof and adjacent the second leg. The bars can pass through through-holes in the isolation keys, particularly for an interior shear key construction. For an exterior shear key construction the bars can be disposed in notches of the isolation key.

Abstract: Connection device having at least one receiving building component, in particular a wooden body (1), which comprises at least a retention recess (2), in particular a continuous retention recess, and having a composite body (3) which is inserted into the retention recess (2) in the wooden body (1), wherein a composite mass (4) is curably inserted in an interstice (7) in the retention recess (2) between the wooden body (1) and the inserted composite body (3) such that the composite body is substantially frictionally secured in said retention recess (2), wherein an intermediate layer (5), in particular as a formation of the surface of the composite body and/or the composite mass, is at least partially provided between the composite body and the composite mass, providing at least partial decoupling of the composite mass from the composite body.

Abstract: In an anchor for use in a lightweight construction panel having upper and lower cover plates with a support core disposed therebetween, which anchor comprises a cylinder body including a cement container with rupture areas and having engagement elements which, upon insertion of a displacement body into the cylinder body, spread the engagement elements outwardly below the upper cover plate and push liquid cement out of the cement container into the areas of the upper and the lower cover plates, the displacement body is coupled to the cylinder body for rotation therewith and the cylinder body has a bottom with broaching elements for cleaning the contact area of the lower bottom plate in front of the anchor upon rotation of the displacement body during anchor installation.

Abstract: A decorative accessory unit, a decorative accessory assemblage, a kit for a personal accessory craft project and a method for creating a personal accessory are described. A plurality of decorative units having at least two linking ends protruding therefrom are provided along with a plurality of connector elements for coupling the linking ends of two decorative units together.

Abstract: An apparatus and method for roof ridge construction are provided. Ridge risers are used to securely retain an attachment block above sheathing portions at an elevation sufficient to permit air venting through the ridge. The ridge risers have legs with one or more weakened regions (such as scores) that permit easy folding so that the legs can be attached to the sheathing and/or rafter portions. A set of attachment holes may be positioned below each of the weakened regions. The legs are joined to a cradle in which the attachment block rests. The attachment block is retained within the cradle via a mechanism such as fasteners, retention cleats, and retention assemblies with tabs designed to be driven into the attachment block. Roof covering elements, such as shingles, shakes, tiles, slate units, metal units, and synthetic ridge covering elements, are attached to the roofing block.

Abstract: A lifting mechanism for a concrete structure is provided through means of a void former and anchor assembly which it cast in place to provide an accurate recess in the structure having two or more spaced divergent anchors therein. The anchors define annularly aligned apertures within the recess. A lifting shackle of an arcuate configuration complimental with that of the recess is received within the recess and carries an arcuate locking bolt extendable through the aligned apertures.

Abstract: A foundation system for bracing a manufactured home on its foundation is disclosed comprising a plurality of vertically stacked blocks stacked on footings, and a plurality of elongated braces connected to the mobile home and a foundation footing. A plurality of elongated braces comprising unitary brace tubes, flexible joints, and footing anchor tabs at first ends of the brace tubes, and adapted to connect to an I-beam of the home at a second remote end of the brace tube. Each footing anchors including a major leg and a minor leg, the major and minor legs being flattened to form an anchor tab intersecting the longitudinal axis of the brace tube at an acute angle of inclination. The flexible joint provides a degree of rotation of the brace tube relative to the anchor tab so that the angle of inclination may be changed.

Abstract: A lightweight, high-stiffness structural beam having a web and a chord, which features a cross-sectional geometry featuring a plurality of sides arranged in an asymmetrical, non-closed, convex polygon shape. At least three of the sides of the chord are substantially parallel to one another, and are substantially perpendicular to the web. The beam is easily manufactured using fully-automated fabrication machinery and may serve as the main, flexure-resistant structural component of a sunlight-concentrating photovoltaic module.

Abstract: A ductile seismic shear key construction including a concrete support, a concrete shear key supported on the concrete support, a generally vertical reinforcement bar in and extending between the concrete support and the concrete shear key and anchored in the concrete support, and an isolation key. The isolation key is in and at the base of the concrete support and adjacent the reinforcement bar. The bar can be one of the two legs of a downwardly-disposed U-shaped bar. The other leg, if present, is also in and extends between the concrete support and the shear key and is anchored in the concrete support; and a second isolation key is in the concrete support at the base thereof and adjacent the second leg. The bars can pass through through-holes in the isolation keys, particularly for an interior shear key construction. For an exterior shear key construction the bars can be disposed in notches of the isolation key.

Abstract: An anchorage system is provided for fixing the guardrail tubes for the building works. The anchorage system includes a body member having a recess, an end portion being formed thereof locations allowing to receive screws fitting therewith for be fixed in a wood casing before that the concrete be poured therein and that the casing be removed thereof, a cavity, and grooves. The recess receives an end tube provided of a rod and being formed as integral part of a guardrail tube. The end tube is blocked therein the cavity by the rod sliding therein grooves, and for that the end tube be blocked therein, the guardrail tube is rotated and fixed to the braces. The same anchorage system is also used with a fastening device for connecting a safety harness in a concrete slab.

Abstract: A connection between an anchor bolt and an anchor bolt holder that is economically efficient to produce and simple to use. This object is achieve by forming the anchor bolt holder from sheet metal and shaping the anchor bolt holder so that it can be formed on an automated die with a minimum of unused material.

Abstract: An improved, lightweight, portable, and self-contained concrete form for fabricating tilt-up concrete walls is provided. The form includes a frame made from metal frame members jointed at their ends with the frame members forming the sides of the frame. Optional structural anchors may be attached inside the frame members. The frame members may be channel shaped with their channels facing inwardly. The reinforcing mat comprising a array of crisscrossed rebars is disposed within the frame and is held in place with a plurality of brackets on the ends of at least some of the rebars and welded to respective frame members. The rebar mat is sized to be positioned in the mid portion of the frame and the brackets on the ends of the rebars are slid outwardly into and attached to the frame members by spot welding. The brackets are then spot welded to the ends of their rebars to form a rigid, lightweight concrete frame.

Abstract: A rooftop equipment support includes a polymer material block and a metal fastener support attached to an upper portion of the block. The fastener support has a fastener portion that is configured to receive one or more fasteners for securing piping or other equipment. According to one embodiment, folded-down lips of the metal fastener portion form a channel configured to accept one or more fasteners, such as pipe clamps. In another embodiment, the metal fastener portion is a plate having one or more threaded inserts. The threaded inserts may be located between a sheet metal part of the fastener portion and a top surface of the polymer material block. The polymer material block may be made of a polyurethane foam material. The metal fastener portion may cover at least part of the edges of a top surface of the polymer material block.

Abstract: The invention relates to a locking device (20,21) for an anchor rod (2) of an anchor system of a concrete wall form, comprising a screw nut element for screwing the anchor rod through a screw thread of the screw nut element. A dome plate can be fastened to a back of a form element (5,6) of the concrete wall form by means of fastening elements (30) and has a spherically shaped plate section with an opening in which the screw nut element is arranged so as to have radial play. The screw nut element has a groove-type radial seat which accommodates the edges of the opening in the spherical plate sections.

Abstract: A formwork anchor for tight connection of formwork elements comprises a first anchoring portion which can be anchored on a first formwork element, an at least sectionally conical portion, and a second anchoring portion. The at least sectionally conical portion is provided between the first anchoring portion and the second anchoring portion, and an anchoring element provided to be positioned at the second anchoring portion in a certain anchoring position. The anchoring element can be displaced freely in relation to the second anchoring portion in the longitudinal direction thereof and can be fixed by means of engaging means in relation to the second anchoring portion in the longitudinal direction thereof.

Abstract: An anchor bolt assembly is provided for connecting a sill to a foundation. The anchor bolt assembly includes an anchor bolt having a threaded end and another end that extends into the foundation. A corrosion resistant bushing extends around a portion of the anchor bolt for isolating the anchor bolt from a treated sill and providing an impervious barrier around a portion of the anchor bolt so as to prevent the anchor bolt from becoming corroded due to the treated nature of the seal.

Abstract: A wall anchoring system is used to secure a stud wall to a foundation of a building. An anchor has an open bottom for receiving a connector which threadably receives an anchor bolt and an open top that is covered by a removable seal tab, the seal tab having a depth gauge to control the level of anchor bolt insertion. A clip is attached to the anchor and is used to secure the device to a concrete block header prior to foundation pour. Once the foundation is poured, the seal tab is removed, either by being detached along a frangible connection or by being punctured in order to expose the open top of the anchor. A securement bolt is passed through the base plate of the stud wall and is received within the anchor.

Abstract: A cover for concealing an open pocket, recess or the like in a precast concrete panel following removal of a form used for positioning an anchor in the concrete panel during manufacture thereof is disclosed. The cover includes a planar or flat or substantially planar or flat top sized to cover an open pocket in a precast concrete panel, and at least one projecting member extending outward from an underside of the top of the cover. Each projecting member has two opposed end walls joined by a cross wall having a lesser height than the height of the end walls. The cross wall is positioned operatively substantially perpendicular to the two end walls of the projecting member and is operatively connected to the end walls of the projecting member. The cross wall is under compression in use and supports the end walls which have sufficient flexibility to conform to the side walls of the pocket when positioned in the pocket.

Abstract: A concrete anchor float that, in one embodiment, facilitates the placement of anchor bolts that protrude from concrete constructions, such as foundations. The concrete anchor float of the present invention can be used with nearly any conventional anchor bolt to insure the correct placement and alignment of the anchor bolt and to promote a strong bond between the anchor bolt and the concrete. According to an embodiment of the present invention, the concrete anchor float generally comprises a base plate with a hole, and a cap extending from the base plate over the hole. The cap includes a cavity configured to releasably secure the anchor bolt, and a top against which the anchor bolt rests upon insertion. According to an implementation of the present invention, the base plate includes features that minimize voids and air pockets between the anchor bolt and the concrete to promote a strong bond.

Abstract: A support block for supporting objects on a roof. The support block is a moulded elastomeric block of pyramidal shape with a substantially hollow core. The support block can be used as is or in a system whereby a galvanized steel channel is secured to the top wall of the block accommodating the mating of a variety of clamps.

Abstract: A 3D construction module comprising at least one vertically upstanding panel with first and second mesh layers oriented generally transversely and longitudinally. The first and second mesh layers have at least one rod member mounted to said panel and are vertically spaced from each other. The rod members form a first horizontally projected retention cell to restrict translation of a bar held in said retention cell between said first and second mesh layers. A third mesh can also be provided to form a second retention cell between said second and third mesh layers. The first and second retention cells restrict translation movement longitudinally and transversely of a vertical reinforcement member held in said first and second retention cells, and restrict rotation of the vertical reinforcement member about both a longitudinal axis and a transverse axis of the said 3D construction module. Horizontal reinforcement meshes are features of the invention.

Abstract: A concrete anchor. The concrete anchor can be embedded within a concrete member to enhance lifting of the concrete member. The concrete anchor of the present invention can include a bar having a top, bottom and first and second sides, at least one attachment aperture, at least one reinforcement bar aperture, and at least one passthrough aperture. The concrete anchor can further include a projection positioned adjacent the second side of the bar. The projection can include an upwardly projecting top face, a downwardly projecting bottom face, a forwardly projecting front face and a rearwardly projecting rear face.

Abstract: Method and apparatus for forming cast members. Steps are provided in the cast member by sliding mounting flanges of hollow plastic step inserts into slots provided in the inner mold shell. The cast material is then poured into the mold. Once the cast material has set, the cast member is withdrawn from the mold assembly. The step insert mounting flanges are broken away, leaving hollow step inserts into which manhole steps are force-fittingly mounted. The inserts are provided with integral cover tabs which cover larger slots provided to facilitate insertion of the step inserts, preventing leakage of the cast material into the mold assembly. Integral cover tabs are similarly provided on enforcement ring support members mounted in a similar fashion to insertion slots provided on one of the mold members to cover larger width slot portions to prevent seepage of cast material. Similar seals are provided by cylindrical-shaped inserts for use in wetcast and drycast fabrication methods.

Abstract: A device for protecting lifting inserts having a tubular body during embedding in a concrete component, comprising an elastically deformable element insertable in the axial end of the tubular body of the lifting insert directed toward the outside of the prefabricated component engageable for lifting the prefabricated component. The elastically deformable element occupies an axial portion of the tubular body starting from axial end. The device comprises expansion elements, which act on the elastically deformable element to cause a radial expansion thereof through the elastically deformable element engaging whereby the inside walls of the tubular body to prevent infiltration of concrete through the axial end of the tubular body of the lifting insert.

Abstract: A concrete embedding anchor includes. An anchor including an anchor body having a head at one end of the shank and a stopper at the other end, a fitment concentrically mounted to said head and having an external thread and easy breaking portion formed on the round bar portion thereof, and a hemispherical shell-shaped former fitted with the middle portion of said anchor shank. A retainer is secured to the concrete form in advance, said anchor fitment is inserted into and screwed up to said retainer, said anchor is combined with the concrete form, then concrete is poured, and said concrete form is taken away after the concrete has hardened.

Abstract: An improved, lightweight, portable, and self-contained concrete form for fabricating tilt-up concrete walls is provided. The form includes a frame made from metal frame members joined at their ends with the frame members forming the sides of the frame. The frame members may be channel shaped with their channels facing inwardly. A reinforcing mat comprising an array of crisscrossed rebars is disposed within the frame and is held in place with a plurality of brackets on the ends of at least some of the rebars and welded to respective frame members. The rebar mat is sized to be positioned in the mid portion of the frame and the brackets on the ends of the rebars are slid outwardly into and attached to the frame members by spot welding. The brackets are then spot welded to the ends of their rebars to form a rigid, lightweight concrete frame.

Abstract: An erection anchor having a forged unitary body that includes a substantially cylindrical shank with one end embedable in a concrete panel and an opposite end extending into a recess in an end of the concrete panel. The forged unitary body also has a substantially cylindrical foot integrally formed with the one end of the shank and a shackle-engageable, planar head integrally formed with the opposite end of the shank. The planar head has first and second opposed substantially planar surfaces and a boss integrally formed with the planar head and extending outward from the first planar surface. The boss provides bearing surfaces that interlock the erection anchor with the concrete panel.

Abstract: A device and method for mounting structures to masonry. The device has a cover plate with a plurality of extendable and retractable straps and is used to cover a hole in a masonry wall, while providing temporary support to various structural items to be attached to the masonry wall. Each strap also engages the inner surface of the masonry wall. The straps preferably have a series of ridges that engage the cover plate such that sufficient resistance is provided to temporarily affix various objects to be embedded in the masonry wall. The straps position the plate on the front surface of the masonry wall such that it is generally concentric with the masonry hole. Grout is then poured into the hollow cavity behind the masonry wall, thus securing the embedded material permanently. The cover plate is preferably transparent to allow the user to determine that the wall and hole are property grouted.

Abstract: An anchoring device for components made of concrete comprises an elongated section which is associable with a concrete component so as to protrude from the component with at least one of its longitudinal sides and with at least one portion of its lateral faces, which extend from the longitudinal side. Engagement regions are provided in this portion of the lateral faces of the section and form a plurality of possible engagement positions, mutually spaced along the longitudinal extension of the section, for a coupling element which is detachably associable with the portion of the section that protrudes from the component. The coupling element has at least one engagement region which forms a plurality of possible engagement positions, mutually spaced parallel to the longitudinal extension of the section, for an element for connecting the coupling element to another component or another element to be rigidly coupled to the component.

Abstract: An improved structural reinforcement bar for use in poured concrete construction has an anchorage plate fixed to a rebar body through friction welding. The friction welded rebar body and anchorage plate result in a structural reinforcement bar with improved axially oriented tensile load transfer capabilities having minimal space requirements.

Abstract: A concrete form panel hanger for hanging objects from concrete form panels generally includes a body portion which is secured to the object. An end of the body portion is secured removably to a concrete form panel. Preferably, a wall spaced away from and extending generally parallel to the body portion extends from the end of the body portion. A rib of the form panel is inserted between the wall and the body portion to secure the hanger to the form panel.

Abstract: An adhesive anchor system having a ribbed anchor member with a threaded opening therein, a tube member having a first end portion connected to an end of the anchor member in alignment with the opening thereof, and a cap covering the opening at another opposite end of the anchor member. In some embodiments the tube member includes measurement indicia thereon for accurate depth placement, and may include a severable portion protruding beyond the work surface and/or a removable tube cover to prevent contamination of the threaded opening of the anchor member.