5/16-18 x 1-1/4 Flange Bolts

5/16-18 x 1-1/4 Flange Bolts are precision-engineered fasteners crafted from Grade 8 steel, delivering exceptional strength and durability for demanding industrial and construction applications. Featuring a yellow zinc finish, these bolts offer moderate corrosion resistance, making them suitable for use in environments where protection against rust is important. The hex head with an integrated washer design ensures easy installation and removal using standard wrenches or sockets, while providing enhanced holding power.

Ideal for securing heavy machinery, structural components, and automotive assemblies, these flange bolts are designed for smooth engagement with nuts thanks to their precise threading. The head stamping allows for quick grade identification even after installation, helping professionals maintain quality and safety standards on the job. Whether used in manufacturing, maintenance, or repair, these bolts deliver reliable performance to keep critical connections secure.

Branded by Midwest, these bolts combine robust material quality with practical features, making them a dependable choice for both industrial and commercial projects requiring strong, long-lasting fastening solutions.