Fasteners › 5/16" Cup Point Square Head Set Screw NC - Carbon Alloy Steel 5/16" Cup Point Square Head Set Screw NC - Carbon Alloy Steel from CA$0.36 Length (Inches): Select Length (Inches) 1/2 5/8 3/4 1 1-1/4 1-1/2 2 2-1/2 Quantity: Add To Cart Added!