1/2-13 x 16 A307 Grade A Carriage Bolt HDG

10 x 1 Simpson Pancake-Head Self-Drilling Screw - Square Drive 410 SS - Carton (1000)

1/2-13 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (250)

50 x 100 Flat Socket Cap Screw 12

1/4-20 x 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

1/4-28 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) 1/2-20 Hex Cap Screws 18-8 Stainless Steel 1/2-13 x 16 A307 Grade1 4 28 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) . Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of