Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/16-18 x 3 3/4
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Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/16-18 x 3 3/4

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[50 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/16-18 x 3 3/4

Mutual ScrewSKU: 4160CH8PDBB
Price:
$59.67 $66.30per 50( $1.19 each)
Pieces 50
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3-3/4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 1.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/16-18 x 3 3/4" are high-strength fasteners engineered for demanding applications where reliability and long service life matter. Crafted from Grade 8 steel, these plain-finish hex screws deliver excellent tensile strength and superior clamping power for heavy equipment, automotive, and industrial builds. Made in the USA, they meet quality standards you can trust.

Key features

  • Grade 8 steel for maximum strength and durability
  • Hex head design for high-torque tightening and secure seating
  • Thread size 5/16-18 UNC
  • Length 3-3/4 inches
  • Finish Plain steel (uncoated)
  • Made in USA ensures consistent quality

Applications

Perfect for automotive, machinery, construction equipment, and industrial assemblies where strong, reliable fasteners are required. The 5/16-18 size and 3-3/4" length provide versatile fitment across a wide range of platforms.

Specifications

  • Material: Grade 8 steel
  • Finish: Plain (uncoated)
  • Thread: 5/16-18 UNC
  • Length: 3-3/4 inches
  • Head type: Hex
  • Country of origin: USA

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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