5/16-18 x 2-1/4 Grade 8 Coarse Hex Flange Bolts

Brand: Midwest

SKU: 55603

Product Attributes:
  • Finish: Yellow Zinc
  • Material: Steel
  • Brand: Midwest
  • Scale: Standard
  • Length: 2-1/4"
  • Diameter: 5/16"
  • Drive Size: 1/2" Wrench/Socket
  • Drive Type: Hex
  • Thread Type: Coarse
  • Package Type: Box

Product Description:

These 5/16-18 x 2-1/4 Grade 8 Coarse Hex Flange Bolts from Midwest are engineered for strength and durability, manufactured from high-quality Grade 8 steel to ensure reliable performance in demanding applications. Featuring a yellow zinc finish, they offer moderate corrosion resistance, making them suitable for a variety of environments. The hex head with an integrated washer allows for easy installation and removal using standard wrenches or sockets, while the head stamping enables quick grade identification even after installation.

Ideal for industrial, automotive, and construction use, these bolts provide maximum holding power thanks to their precise threading, which ensures smooth engagement with nuts and keeps components securely connected under stress. Whether you’re assembling machinery or working on structural projects, these bolts deliver the strength and reliability needed for professional results.

Features:

  • Manufactured from Grade 8 steel for reliable strength and long‑lasting performance in demanding applications.
  • Yellow Zinc finish provides moderate corrosion resistance
  • Head stamping provides easy class/grade identification even after installation
  • Hex head with integrated washer allows for easy installation and removal with standard wrenches or sockets and improved holding power
  • Precise threading provides smooth engagement with nuts to provide maximum holding power, ensuring components remain firmly connected under stress