[250 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 7/16-20 x 3-1/4

Mutual ScrewSKU: 4452CH8PUSABB

Price:
Sale price$169.09 Regular price$187.88per 250( $0.68 each)
Pieces 250
Measurement type Inch
Thread size 7/16-20
Diameter 7/16
Length 3-1/4
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 20
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

Engineered for heavy-duty fastening, these Hex Head Cap Screws are Grade 8 steel, plain finish, USA made. The 7/16-20 thread size and 3-1/4 inch length deliver reliable performance in high-stress assemblies.

Key features

  • Grade 8 strength: premium high-tensile steel for superior shear and tensile resistance.
  • Plain finish: uncoated for use in clean environments or where plating isn't required.
  • Hex head: enables high-torque tightening with common wrenches or sockets.
  • Thread size and length: 7/16-20 UNC, 3-1/4" length for precise, secure fit.
  • Made in the USA: quality you can trust.
  • Applications: ideal for automotive, machinery, equipment, and structural connections requiring strong, secure joints.

Why choose Grade 8 hex cap screws

When you need dependable performance under load, Grade 8 hex cap screws deliver superior hardness and resistance to wear. The 7/16-20 thread is a common size, enabling easy replacement and compatibility with standard nuts, washers, and anchors. Use with appropriate lock-washers or thread sealants as required by your application.

Specifications

Head type: Hex

Grade: 8

Material: Steel

Finish: Plain (unplated)

Thread: 7/16-20 UNC

Length: 3-1/4 in

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800-222-0324

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