1/2 x 2 1/2 Dowel Pin Alloy Steel

7/64 Cobalt Heavy Duty Jobber Drill Bit

41/64 x 6 Reduced Shank Drill Bit (1/2 Shank)

the hardness rating is HRC 24-35

3/4-10 x 5 Hex Cap Screw SS 316 (A4)

5/16-18 x 2 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 3/4-10 Grade 5 Hex Cap Screws Zinc Plated - Domestic USA 1/2 x 2 1/2 Dowel5 16 18 x 2 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness