accurate and tough drilling through all aggregates

Nibs under head clamp board firmly

1 1/8-7 x 2 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (30)

8 x 2 1/4 Phillips Wafer Hi-Low Cement Board Screws w/ Nibs Sharp Point Ruspert Coated - Carton (2500)

1-8 x 10 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20)

5/8-18 x 4 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25) 6-Lobe Bugle-Head Decking Screws 316 Stainless Steel accurate and tough drilling through5 8 18 x 4 1 2 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