5/8-11 x 3-1/2 Grade 8 Coarse Hex Flange Bolts

These 5/8-11 x 3-1/2 Grade 8 Coarse Hex Flange Bolts are crafted from high-strength Grade 8 steel, delivering reliable durability and long-lasting performance in demanding industrial and construction applications. Featuring a yellow zinc finish, they offer moderate corrosion resistance to help maintain integrity in various environments. The hex head design with an integrated washer ensures easy installation and removal using standard wrenches or sockets, while providing enhanced holding power.

Ideal for heavy-duty fastening tasks, these bolts are commonly used in automotive, machinery, and structural projects where strong, secure connections are critical. The precise coarse threading allows smooth engagement with nuts, maximizing holding strength and ensuring components stay firmly connected under stress. Additionally, the head stamping allows for quick and easy grade identification even after installation, simplifying maintenance and inspections.

Designed for professionals and DIY enthusiasts alike, these bolts combine strength, reliability, and ease of use, making them a dependable choice for a wide range of fastening needs.