8-32 x 1/2 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

#2 drill point for quick penetration of metal up to 0

8 x 1 3/4 Square Flat Particle Board Screw w/ Nibs T17 Zinc Plated - Carton (4

#43 Heavy Duty Drill Bit - Stubby Length

Less vibration

3/4-10 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) Premium SDS Plus Hammer Drill Bits 8-32 x 1/2 Phillips Flat3 4 10 x 1 1 2 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