Ship Auger Wood Drill Bits are heat treated with machine ground hollows

5/16-18 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (1650)

5/8-18 x 1 Grade 8 Hex Cap Screw Plain Domestic USA (25)

7/16-14 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (1600)

1-8 x 3 1/2 A325 Type 1 Heavy Hex Bolt Plain (50)

3/8-16 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 5/8-11 Socket Cap Screws 316 Stainless Steel Ship Auger Wood Drill Bits3 8 16 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . 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 on