5/16"-18 x 1-3/4" Grade 2 Hex Head Tap Bolts, Fully Threaded, Zinc Plated

Grade 2 Tap Bolts are hex head bolts threaded up to the head, with a machined point and a fully threaded shank. Tap bolts are used instead of a stud and nut, designed to be driven by a wrench or pneumatic tools for ease of installation. Tap Bolts have tolerances similar to those of cap screws and essentially serve as fully threaded cap screws. Grade 2 tap bolts are offered with a zinc plated finish.