Nuts are made from a low-carbon steel which conforms to the following chemical composition requirements: Carbon-0

1-8 x 6 Socket Cap Screw Alloy

3/4-10 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

7 x 1 5/8 Simpson Trim-Head Self-Drilling Siding Screw - Square Drive 410 SS - Carton (5000)

1/4-20 Drop-In Anchor Zinc Plated (100)

10 x 3 1/2 Star Flat Decking Screws w/ NIBS Yellow Zinc Plated T17 - Carton (1000) Square Trim-Head Wood Decking Screws 305 Stainless Steel with Painted Heads Nuts are made from a10 x 3 1 2 Star Flat Decking Screws w NIBS Yellow Zinc Plated T17 Carton (1000) . Exterior wood screws used for attaching wood to wood. Exterior wood screws used in fencing, decks and patios 90 hr. salt spray resistance Used in low corrosion applications Star drive prevents cam out and stripping for improved drivability