The MP14 fastener can be fastened into metal, wood or concrete. It is engineered as a true multi-purpose fastener and offers strong performance in diverse applications. It can be used instead of self-drilling fasteners, self-tapping fasteners, lag screws, roofing screws, spikes, tapcon, wedge anchors, zamacs and more. The Tri-Seal long-life coating is formulated for corrosion protection when used in ACQ lumber. These are supplied in 100 count boxes and include a nut setter, carbide drill bit and installation guide, and stocked in lengths of 1 1⁄4, 2, 2 1⁄2 and 3 inches.