Grade A Heavy Hex Nuts are manufactured from low carbon steel

3" USS Flat Washer HDG

8 x 2 1/4 Simpson Fiber-Cement Screws T17 316 SS - Carton (2000)

3/4-10 x 2 Socket Cap Screw 18-8 (A2) Stainless Steel

L9® Hex Nuts are for use with corresponding L9® Hex Cap Screws only

9/16-12 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) Phillips Bugle Decking Screws Yellow Zinc Plated Grade A Heavy Hex Nuts9 16 12 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on