5/16-18 x 2 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (100)

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

14 x 15 Log Hog® Heavy Duty Log Home Fastener (150)

9/16-18 x 1 1/2 Socket Cap Screw Alloy

5/16-24 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (250) 1-14 Socket Cap Screws Alloy 5/16-18 x 2 1/4 Grade5 16 24 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (250). 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 120,000