[450 BULK] Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X3 1/2

Mutual ScrewSKU: 3156CH8OKC

Price:
Sale price$314.44per 450( $0.70 each)
Pieces 450
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3-1/2
Material Steel
Grade Grade 8
Finish Yellow Plated
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 37.0 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 Zinc Yellow Plated (USA Made) 5/16-18 x 3 1/2 are designed for high-strength, durable fastening in heavy-duty assemblies. Crafted in the USA, these screws deliver reliable performance with corrosion resistance for long-lasting use in automotive, industrial, and equipment applications.

Key Features

  • Grade 8 steel offers high-tensile strength for demanding services
  • Zinc yellow plated finish provides corrosion resistance and visibility
  • Hex head cap screw design for secure torque transfer and easy driving
  • Threads: 5/16-18 UNC for standard hardware compatibility
  • Length: 3 1/2 inches to fit thicker components
  • USA-made quality you can trust
  • Ideal for automotive, machinery, and industrial assemblies requiring strong, reliable fasteners

Specifications

  • Size: 5/16-18 x 3 1/2 in
  • Material: Grade 8 steel
  • Finish: Zinc Yellow Plated
  • Head style: Hex head cap screw
  • Drive: Hex
  • Origin: USA

Ready to install? Add these durable fasteners to your cart today and ensure your project has the strength and reliability it demands.

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800-222-0324

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