Zinc plated Socket Head Cap Screws from Brighton Best

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

Over-sized threads are wider than gutter spikes

3/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (4700)

3/4-10 x 3 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25) 1/2-20 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA Zinc plated Socket Head Cap3 4 10 x 3 3 4 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