6-32 x 1/2 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

which means you can place them close to each other without having to worry about compromising structural integrity

5/16-18 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (450)

7/16-14 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

10 x 1 1/2 Simpson Flat-Head Marine Screw - Phillips Drive 316 SS - Box (100)

3/4-10 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) Combo Flat Sleeve Anchors Zinc Plated 6-32 x 1/2 Phillips Flat3 4 10 x 4 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