Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X8
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Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X8

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[225 PKG] Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X8

Mutual ScrewSKU: 31128CH8OKC
Price:
$425.38per 225( $1.89 each)
Pieces 225
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 8
Material Steel
Grade Grade 8
Finish Yellow Plated
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 40.0 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 with a durable zinc yellow plated finish. USA made. Size: 5/16-18 x 8. These fasteners deliver superior strength and dependable performance for automotive, industrial, and machinery applications.

Engineered for high-load, high-friction environments, these screws provide a secure clamp and long service life. The hex head design allows simple drive with standard wrenches or sockets.

  • Grade 8 steel for exceptional tensile strength and fatigue resistance.
  • Zinc yellow plated finish offers corrosion resistance and a bright finish for easy inspection.
  • Size and thread: 5/16-18 UNC thread, 8 inches long for heavy-duty assemblies.
  • Hex head design for confident torque and quick installation.
  • Made in the USA ensuring consistent quality and domestic sourcing.
  • Versatile applications: ideal for automotive, industrial machinery, construction, and equipment maintenance.

For best results, pair with compatible nuts and washers and torque to manufacturer specifications. These hex head cap screws are suitable for a range of metal assemblies where high clamping force is required.

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800-222-0324

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