[300 BULK] Hex Head Cap Screws Grade 8 Steel Plain 9/16-12 x 1-1/4

Mutual ScrewSKU: 5620CH8PBB

Price:
Sale price$162.10per 300( $0.54 each)
Pieces 300
Measurement type Inch
Thread size 9/16-12
Diameter 9/16
Length 1-1/4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 12
Thread style Partially Threaded
Weight 39.0 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 9/16-12 x 1-1/4 are engineered for superior strength and reliable performance in demanding applications. The Grade 8 steel provides high tensile strength for heavy?duty fastening, while the plain finish keeps the screw straightforward and ready for finishing or coating in your project.

Key specifications

  • Material: Grade 8 steel for high tensile strength and durability
  • Finish: Plain (uncoated) — suitable for finishing or coating as part of your assembly
  • Head type: Hex head for easy driving with standard tools
  • Thread size: 9/16-12 (coarse thread) for strong grip and compatibility with corresponding nuts and tapped holes
  • Length: 1-1/4 in

These fasteners are ideal for automotive, industrial, and construction settings where high clamping force and reliable performance are crucial. The combination of a hex head and Grade 8 steel delivers dependable strength in bolted connections that endure vibration and heavy loads.

Applications

  • Automotive and heavy machinery assemblies
  • Industrial equipment mounting and framing
  • Construction and structural connections
  • Any project requiring a robust, high-strength fastener with a plain finish

Tips for best results: pair these hex head cap screws with compatible nuts and washers, ensure clean threads, and torque according to standard Grade 8 fastener charts. If outdoor or moisture exposure is expected, consider post-treatment finishes to enhance corrosion resistance.

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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