Abstract: A concrete fastener with ribs attached to the body that, when driven into a pre-drilled hole, the ribs collapse due to the friction between the concrete/CMU and the fastener ribs creating a temporary or permanent attachment between the objects.

Abstract: A new and improved fastening system for attaching relatively thin-gauge sheet metal members, such as, for example 14-25 gauge sheet metal members, wherein the power output parameters of the power tool are controlled such that when the driver blade member of the power tool acts upon each one of the brad-type nail fasteners, the brad-type nail fasteners will attain a predetermined velocity value, such as, for example, within the velocity range of 1000-2500 in/sec. Any one of various different types of power tools may be employed, and in addition, various geometrical characteristics of each brad-type fastener are important, such as, for example, the tip geometry, the aspect ratio A/R of the shank member of the fastener, and the use of an adhesive or painted coating upon the external surface areas of the shank member of the fastener. The fasteners preferably comprise dual-width fasteners which exhibit enhanced pull-out resistance values.

Abstract: A holder comprising a rigid base bar having a pin end and a stabilizing end; a rigid stabilizing bar having a base end and an opposite end, with the base end of the rigid stabilizing bar being rigidly attached to the stabilizing end of the rigid base bar, and extending perpendicular to the rigid base bar; two nails being each having a head end and a pointed end, with the head end of the each nail being rigidly attached to separate points along the rigid stabilizing bar, and with the pointed end of the each nail being extended perpendicular to the rigid stabilizing bar and parallel with the rigid base bar and toward the perpendicular direction of the rigid base bar; and the rigid base bar having a bore through it in a direction parallel with the length of the rigid stabilizing bar.