You’ll often see them used in structural projects

5/8-11 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/4-28 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1600)

50 x 140 Hex Cap Screw DIN 931 A2 (18-8) Stainless Steel - DIN 931 A2 Hex Cap Screws are manufactured from A2-70 stainless steel per ISO 3506 part 1

1 1/2-6 x 6 A307A Hex Bolt Plain Steel

1/4-20 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (350) F436 Flat Washers Hot Dipped Galvanized You’ll often see them used1 4 20 x 6 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (350) . 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