5/16-18 x 1-1/2 Grade 8 Coarse Hex Flange Bolts

The 5/16-18 x 1-1/2 Grade 8 Coarse Hex Flange Bolts are precision-engineered from durable Grade 8 steel, ensuring exceptional strength and long-lasting performance in demanding industrial and construction applications. Featuring a yellow zinc finish, these bolts offer moderate corrosion resistance, making them suitable for environments where protection against rust is important. The hex head design with an integrated washer allows for easy installation and removal using standard wrenches or sockets, while also enhancing holding power.

These bolts are ideal for securing heavy machinery, structural components, and automotive assemblies where reliable fastening is critical. The precise coarse threading ensures smooth engagement with nuts, providing maximum holding power to keep components firmly connected under stress. Additionally, the head stamping allows for quick and easy grade identification even after installation, helping professionals maintain quality and safety standards.

Designed for both professional contractors and industrial users, these bolts combine strength, durability, and ease of use, making them a dependable choice for a wide range of fastening needs.