Pre-drilling recommended – dependent on substrate

14 x 7 HeadLOK® Heavy Duty Flathead Fastener (250)

1/4-20 x 1 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100)

3/4 x 10 ITM SDS Plus Hammer Drill Bit

9/16-12 x 2 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (25) Phillips Flat Machine Screws Type F Zinc Plated Pre-drilling recommended – dependent on9 16 12 x 2 1 4 Grade 5 Hex Cap Screw Plain 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