[25 PKG] Hex Head Cap Screws Grade 8 Steel Zinc Yellow Bake Fine Thread (USA Made) 9/16-18 x 3 1/2

Mutual ScrewSKU: 5756CH8DBB

Price:
Sale price$84.54 Regular price$93.94per 25( $3.38 each)
Pieces 25
Measurement type Inch
Thread size 9/16-18
Diameter 9/16
Length 3-1/2
Material Steel
Grade Grade 8
Finish Yellow Bake
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 7.04 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

Upgrade your hardware with these Hex Head Cap Screws built from high-strength Grade 8 steel and finished with a durable zinc yellow bake coating. Proudly USA-made, these fasteners deliver reliable performance in demanding machinery, automotive, and construction applications.

Designed with a fine thread (18 TPI) for precise tension control and secure engagement, these screws measure 9/16-18 x 3 1/2, offering the ideal balance of strength and reach for heavy-duty assemblies.

Key Features

  • Material: Grade 8 steel for high tensile strength
  • Finish: Zinc yellow baked-on coating for corrosion resistance and visibility
  • Thread: Fine thread (18 TPI) for smooth, secure engagement
  • Size: 9/16-18 x 3 1/2 inches
  • Head Type: Hex head for easy drive with standard tools
  • Country of Manufacture: USA-made

Why Choose Grade 8 Hex Head Cap Screws?

When you demand reliability in heavy machinery, automotive repairs, or structural assemblies, Grade 8 fasteners provide superior shear and tensile strength compared to lower grades. The zinc yellow bake finish offers durable corrosion resistance and high visibility for quick inspection on busy job sites.

Ideal Applications

  • Machinery assembly and maintenance
  • Construction and structural connections
  • Automotive and heavy equipment installations
  • Industrial equipment mounting

Stock up with confidence. These Hex Head Cap Screws are built to meet exacting standards, ensuring a secure, long-lasting hold in tough environments.

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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