15/64 Heavy Duty Drill Bit - Stubby Length

#25 Heavy Duty Drill Bit - Stubby Length

Wings ream hole in board preventing "jacking action"

the expansion mechanism compresses and exerts force against the walls of the hole

5/8-18 x 2 1/2 Flat Socket Cap Screw Alloy

1/4-28 x 5/8 Grade 5 Hex Cap Screw Plain Domestic USA (100) 10-24 Socket Cap Screws Alloy 15/64 Heavy Duty Drill Bit1 4 28 x 5 8 Grade 5 Hex Cap Screw Plain Domestic USA (100). 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