1/2 x 2 3/4 Mushroom Spike Zinc Plated (50)

Suitable for medium alloyed materials and stainless steel

1/2-13 x 1 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (375)

1/4-20 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (400)

1 3/8-6 A194 2H Heavy Hex Nut Plain

7/8-9 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (35) 1/2 Hex Lag Screws Zinc Plated 1/2 x 2 3/4 Mushroom7 8 9 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (35) . 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