railroad ties

5/16-24 x 1 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (1000)

3/4-16 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

7/8-9 x 3 Hex Cap Screw SS 316 (A4)

1/2-13 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (225) 5/8-11 Hex Cap Screws 316 Stainless Steel railroad ties1 2 13 x 2 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (225). 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