5/16-18 x 4 Grade 8 Coarse Hex Cap Screws

Brand: Midwest

SKU: 81927

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

Product Description:

These 5/16-18 x 4 Grade 8 Coarse Hex Cap Screws are manufactured from high-strength Grade 8 steel, ensuring reliable durability and long-lasting performance in demanding industrial and construction applications. The yellow zinc finish offers moderate corrosion resistance, making these bolts suitable for use in environments where protection against rust is important. Each screw features a hex head with an integrated washer for easy installation and removal using standard wrenches or sockets, while the head stamping allows for quick grade identification even after installation.

Designed for maximum holding power, the precise coarse threading ensures smooth engagement with nuts, keeping components securely fastened under stress. Ideal for heavy machinery, automotive repairs, structural assemblies, and other applications requiring strong, dependable fastening solutions. These bolts deliver professional-grade performance with the convenience and reliability needed by both contractors and manufacturers.

Features:

  • Manufactured from Grade 8 steel for reliable strength and long‑lasting performance in demanding applications.
  • 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