5/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (50)

#2 square-drive bugle heads drive flush with work surface

1/4 x 1 Nail-in Anchor Mushroom Stainless Steel (100)

3/8-16 x 4 1/2 Hex Tap Bolt Silicon Bronze

10 x 4 1/2 Phillips Bugle Coarse Drywall Screws Phosphate Coated - Carton (500)

1/4-20 x 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 5/8-11 Hex Tap Bolts 18-8 Stainless Steel 5/8 L9 SAE Tension Flatwasher1 4 20 x 2 3 4 Grade 5 Hex Cap Screw Zinc Plated 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