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

7/8-9 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

00 x 350 Socket Cap Screw 12

(SP®) SNAPSKRU® Anchor & 8 x 1 1/2 Combo Screw (50)

9/16-18 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

7/8-14 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (45) Finished Hex Nuts Silicon Bronze Ship Auger Wood Drill Bits7 8 14 x 3 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (45) . 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