1/2" x 3" (50 Sets) Hot Dipped Galvanized Lag Screw Kit for Exterior Use, Commercial Grade 307A, Partially Threaded, Kit Includes: 1/2" USS Flat Washers (50 pc) - by$$Hardware

Superior Corrosion Resistance External Hex Drive ASTM A307 Compliant Hot Dipped GalvanizedYou may also like 10 PCS 5/8-18x2" Grade 8 Hex Flange Screws Frame Bolts SAE Fine Thread Phos & Oil$$Hardware.