5/16-18 x 1 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (1400)

1/2-20 x 1 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (275)

2-4 1/2 x 15 Socket Cap Screw Alloy

#31 Heavy Duty Drill Bit - Stubby Length

#15 Heavy Duty Jobber Drill Bit

7/16-14 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (50) 5/16-18 Hex Tap Bolts Silicon Bronze 5/16-18 x 1 Grade 87 16 14 x 3 Grade 5 Hex Cap Screw Plain 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 120,000