as the anchor remains in place and allows you to use it repeatedly

#18 x 6 High Speed Aircraft Bit Cobalt

#35 Heavy Duty Drill Bit - Stubby Length

1/4-28 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (350)

5/8-18 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/8-18 x 1 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/2-20 Button Socket Cap Screws Alloy as the anchor remains in5 8 18 x 1 1 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) . 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