Abstract: Fluid tight blind fasteners and methods tor fastening are provided. The sleeve comprises a first sleeve end comprising a first inner surface, a second sleeve end comprising a second inner surface, and an elongate portion extending from the first sleeve end to the second sleeve end. The first inner surface and the second inner surface define a sleeve cavity extending into the sleeve from the first sleeve end toward or to the second sleeve end. The pin is configured to be at least partially received by the sleeve cavity. The pin comprises a first pin end portion configured to receive a torque, a second pin end, and a shank extending from the first pin end portion to the second pin end. Tire shank comprises threads and the threads are configured to form threads on the second inner surface of the sleeve.

Abstract: A method includes inserting a machining tool through a hole of at least one workpiece that includes a first surface and a second surface opposite the first surface and extends from the first surface to the second surface. The hole forms an inner wall. The machining tool includes a shaft and a cutting tip proximate to one end of the shaft. The cutting tip includes a cutting portion. The method includes positioning the cutting portion of the cutting tip to abut an edge of the hole. The edge is located at a junction of the second surface of the one of the at least one workpiece and the inner wall. The method includes forming a surface modification at the edge with the cutting tip. The method includes removing the machining tool from the hole. The method includes installing a fastener within the hole. The fastener engages the surface modification.

Abstract: A method includes inserting a machining tool through a hole of at least one workpiece that includes a first surface and a second surface opposite the first surface and extends from the first surface to the second surface. The hole forms an inner wall. The machining tool includes a shaft and a cutting tip proximate to one end of the shaft. The cutting tip includes a cutting portion. The method includes positioning the cutting portion of the cutting tip to abut an edge of the hole. The edge is located at a junction of the second surface of the one of the at least one workpiece and the inner wall. The method includes forming a surface modification at the edge with the cutting tip. The method includes removing the machining tool from the hole. The method includes installing a fastener within the hole. The fastener engages the surface modification.

Abstract: A fastener includes a sleeve having a tubular portion including a first end and a second end; a head located at the first end; a deformable portion located at the second end; and a core pin having a first end and a second end. The core pin has an elongated shank portion between the first end of the core pin and the second end of the core pin including a threaded portion proximate the second end of the core pin and a head at the first end of the core pin. The sleeve is configured to receive the core pin. The fastener is configured to secure a plurality of workpieces to one another. The deformable portion is configured deflect in response to compression of the deformable portion by the head of the core pin, to form a flared connection that engages a surface of one of the plurality of workpieces.

Abstract: A retaining ring for use with a fastener is disclosed. The retaining ring comprises a plurality of substantially t-shaped internal tabs that oppose one another and are about twice as thick as the exterior of the ring. The ring is installed onto a fastener having at least two longitudinally-oriented slots by locating a tab into one of the slots and snapping another tab into another slot, thereby momentarily elongating during installation. The tabs substantially reduce the possibility of accidental removal of the retaining ring. In addition, resistance and damage to the internal tabs of the retaining ring is substantially reduced when the retaining ring slides axially in the longitudinal slots of the fastener. Since only the longitudinally-oriented slots are required for installation, the axially-oriented entry slots and cross-over slots of some fastener embodiments can be eliminated, thereby significantly reducing fastener cost and manufacturing time.

Abstract: A threaded locking beam nut having a plurality of locking beams configured such that the inside edge surface of each locking beam has a radially inwardly angled surface thereby forming substantially a V-shaped channel between adjacent beams.

Abstract: An improved tool for use in association with a deformable nut of a fastener includes a socket having inner surface that forms a cavity on the socket. The inner surface includes one or more engagement surfaces that are tapered inwardly at an angle that approaches a taper of a deformable wall of the deformable nut. In one embodiment the tapering of the engagement surfaces is provided by configuring the engagement surfaces to extend in a tapered fashion generally toward a central axis of the socket. In another embodiment, the tapering is provided by configuring the engagement surfaces to each extend in a spiral fashion about a spiral axis that may, for example, be parallel and spaced-apart from the central axis of the socket.

Abstract: An improved tool for use in association with a deformable nut of a fastener includes a socket having inner surface that forms a cavity on the socket. The inner surface includes one or more engagement surfaces that are tapered inwardly at an angle that approaches a taper of a deformable wall of the deformable nut. In one embodiment the tapering of the engagement surfaces is provided by configuring the engagement surfaces to extend in a tapered fashion generally toward a central axis of the socket. In another embodiment, the tapering is provided by configuring the engagement surfaces to each extend in a spiral fashion about a spiral axis that may, for example, be parallel and spaced-apart from the central axis of the socket.

Abstract: A threaded locking beam nut having a plurality of locking beams configured such that the inside edge surface of each locking beam has a radially inwardly angled surface thereby forming substantially a V-shaped channel between adjacent beams.

Abstract: A threaded locking beam nut having a plurality of locking beams configured such that the inside edge surface of each locking beam has a radially inwardly angled surface thereby forming substantially a V-shaped channel between adjacent beams.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. A retaining device is used to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw. A retaining device is placed over the screw adjacent the drive nut to retain the drive nut to the screw.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. An end of the drive nut opposite the nibs is deformed to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener of the present invention includes a screw, a sleeve, a nut, and a drive nut. The new drive nut of this invention has protruding nibs that mate precisely with a driving recess located in the nut head. The protruding nibs of the new drive nut are not deformable and serve to replace the deformable annular ridge that was used in previous drive nut assemblies. The configuration of the protruding nibs and the recess in the nut head can be of many forms, so long as both parts are capable of being mated. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener of the present invention includes a screw, a sleeve, a nut, and a drive nut. The new drive nut of this invention has protruding nibs that mate precisely with a driving recess located in the nut head. The protruding nibs of the new drive nut are not deformable and serve to replace the deformable annular ridge that was used in previous drive nut assemblies. The configuration of the protruding nibs and the recess in the nut head can be of many forms, so long as both parts are capable of being mated. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. An end of the drive nut opposite the nibs is deformed to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw.

Abstract: A blind fastener with an improved drive nut and assembly process. The blind fastener includes a screw, a sleeve, a nut, and a drive nut. The drive nut has a smooth bore and protruding nibs that mate precisely with a driving recess located in the nut head. A retaining device is used to retain the drive nut on the screw against the nut. Once the new assembly process for the blind fastener has been completed, the drive nut will have been mated with the nut head to prevent any rotation of the nut during installation of the blind fastener. The assembly process will now include placing the sleeve over the threads of the screw to a position adjacent the screw head. The nut is then threaded onto the screw adjacent the sleeve. The drive nut's protruding nibs are next aligned and physically engaged into the driving recess of the nut head by sliding the smooth bore over the screw. A retaining device is placed over the screw adjacent the drive nut to retain the drive nut to the screw.