These Simpson Deck-Drive™ DWP Wood Screws are made from 316 stainless steel with 6-lobe drive heads

Pre-drilling recommended – dependent on substrate

A325 Type 1 Heavy Hex Bolts are made from high-strength A325 steel with a plain finish for maximum corrosion resistance and strength

efficient drills and clean

5/8-11 x 2 1/2 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA - Bulk (175) 5/8 Hex Lag Screws 18-8 Stainless Steel These Simpson Deck-Drive™ DWP Wood5 8 11 x 2 1 2 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA Bulk (175) Socket Cap Screws with Thermal Black Oxide finish are made in the USA from durable alloy steel for superior strength and reliability. Featuring a hex drive and corrosion resistant coating, ideal for high performance and structural applications.