7/16"-20 x 3" Grade 8 Yellow Zinc Finish Hex Cap Screw

Engineered for high-stress applications and critical structural assemblies, the 7/16"-20 x 3" Grade 8 Hex Cap Screw (SKU: 18882) offers the ultimate combination of strength and reliability. Manufactured from medium carbon alloy steel and quenched and tempered for maximum durability, this fastener meets rigorous SAE J429 specifications. With a minimum tensile strength of 150,000 PSI, it is significantly stronger than standard Grade 2 or Grade 5 bolts, making it the ideal choice for heavy machinery, automotive suspension systems, and industrial equipment. This hex cap screw features a fine thread (20 TPI) for superior vibration resistance and precise tensioning capabilities. The 3-inch length provides ample reach for thick mounting plates and heavy-duty brackets. To ensure longevity in demanding environments, each bolt is finished with a high-quality yellow zinc plating. This coating provides a distinct gold aesthetic while offering an essential layer of corrosion resistance against moisture and oxidation. The hexagonal head is designed for high-torque installation with standard wrenches or impact tools, ensuring a secure, non-slip grip during assembly. Whether you are performing fleet maintenance or constructing heavy-duty steel frames, these Grade 8 fasteners provide the safety and mechanical integrity required for your most demanding projects. Sold individually or in bulk to suit your shop’s needs.