3/8-16 x 4 Grade 8 Coarse Hex Flange Bolts

These 3/8-16 x 4 Grade 8 Coarse Hex Flange Bolts from Midwest are crafted from high-strength Grade 8 steel, delivering exceptional durability and reliable performance in demanding applications. Featuring a yellow zinc finish, they offer moderate corrosion resistance, making them suitable for environments where protection against rust is important. The hex head design with an integrated washer ensures easy installation and removal using standard wrenches or sockets, while providing enhanced holding power.

Designed with precise coarse threading, these bolts engage smoothly with nuts to maintain a secure connection under stress, making them ideal for heavy machinery, automotive, construction, and industrial use. The head stamping allows for quick identification of the bolt’s class and grade even after installation, helping professionals ensure the right fastener is used for the job.

Perfect for both professional contractors and DIY enthusiasts, these bolts combine strength, reliability, and ease of use in one versatile fastener. Whether you’re assembling structural components or performing maintenance, these Grade 8 hex flange bolts provide the quality and performance you need to get the job done right.