Zinc-plated material offers reliable strength and durability

it is corrosion-resistant for long-lasting durability

Phosphorous-0

each bolt is designed to withstand considerable force

The Simpson Flat-Head Deck-Drive™ DWP Wood Screws are made from 305 stainless steel

#10-32 x 1 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA - Package (100) 1 1/4-7 A325 Type 1 Heavy Hex Bolts Plain Zinc-plated material offers reliable strength#10 32 x 1 Socket Head Cap Screws Thermal Black Oxide Alloy Steel Domestic USA Package (100) 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.