1/4-28 x 1/2 Hex Head Cap Screws, Steel Grade 5, Zinc Plating (Quantity: 3300 pcs) - Fine Thread UNF, Fully Threaded, 1/2 Inch, Thread 1/4 Inch

Hex Cap Screws (also called hex head cap screws, hex bolt, or hex head bolt) Manufactured to ASME B and SAE J429 specifications,Features a thick, hexagonal head with chamfered threads,Washer face under the head to provide ample bearing surface when tightened with a wrench,Made from medium carbon steel. You will notice that it s hexagon head surface is smooth with no markings,Tensile Strength: psi 1/4 thru 1 inch diams, all lengths) - psi. ( thru 1.5 inch diams, all lengths)