[150 PKG] Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 1/2-20 x 3-1/2

Mutual ScrewSKU: 5156CH8PUSABB

Price:
Sale price$141.92 Regular price$157.69per 150( $0.95 each)
Pieces 150
Measurement type Inch
Thread size 1/2-20
Diameter 1/2
Length 3-1/2
Material Steel
Grade Grade 8
Finish Plain
Head style Hex
Threads per inch 20
Thread style Partially Threaded
Weight 34.0 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 high-strength fastening, these Hex Head Cap Screws are made from Grade 8 steel with a plain finish, proudly USA made. Designed for demanding assemblies, they deliver reliable performance in tough environments.

Specifications at a glance:

  • Material: Grade 8 steel
  • Finish: Plain
  • Head style: Hex head cap screw
  • Thread size: 1/2-20 UNC
  • Length: 3-1/2 in
  • Drive type: Hex
  • Country of origin: USA

Whether you're upgrading equipment or assembling heavy machinery, these screws provide outstanding shear and tensile strength to keep critical joints secure. The 1/2" major diameter and 20 threads per inch (UNC) ensure strong engagement in a variety of materials.

Ideal for:

  • Automotive and repair projects
  • Industrial machinery and equipment
  • Heavy-duty structural assemblies
  • Construction and fabrication tasks

Why choose these Grade 8 hex caps? USA-made manufacturing ensures strict quality control, and the plain steel finish accepts a range of coatings if needed, or can be used as-is for non-plated applications in protected environments. They are a reliable, high-strength option for demanding fastening needs.

Add these Grade 8 hex head cap screws to your toolkit for durable, high-strength fastening that stands up to heavy loads and tough conditions.

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

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