5/16-18 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (50)

powder-coated finish – painted heads blend with decking material

3/8-16 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

1/4-20 x 1 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

50 x 20 Socket Set Screw Cup Point DIN 916 Black Oxide Alloy

3/4-16 x 8 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (30) 1/2-13 Socket Cap Screws Alloy 5/16-18 x 5 1/2 Grade3 4 16 x 8 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (30). 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