5/16-18 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (800)

10 x 1 Simpson Pancake-Head Self-Drilling Screw - Square Drive 410 SS - Box (100)

so they fill old worn spike holes tightly

1/4-28 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

3/8-16 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (900)

1/2-13 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (175) 3/4-10 Grade 5 Hex Cap Screws Zinc Plated 5/16-18 x 2 Grade 51 2 13 x 3 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (175) . 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