Features: * Self-sealing neoprene washer for waterproof applications * Premium finish provides exceptional corrosion resistance in harsh outdoor environments * For metal-to-metal (26-22 gauge) or metal-to-wood applications * Applications: attaching roofing and wall panels to steel framing, roofing panels over insulation to wood structure, pole barn construction * Pack of 90 What"s In The Box: * ITW Contractor Fasteners 21408 Roof Screw No.12 X 3/4 in. Drill Pt - 0455675