also known as “butterfly anchors

61/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

1-8 x 2 3/4 Flat Socket Cap Screw Alloy

1/4-28 x 5/8 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (3000)

1 3/8-6 x 18 Socket Cap Screw Alloy

9/16-18 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) M16-2.00 Socket Cap Screws DIN 912 18-8 Stainless Steel (A2) also known as “butterfly anchors9 16 18 x 1 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 of