[450 BULK] Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X3 1/4

Mutual ScrewSKU: 3152CH8OKC

Price:
Sale price$424.64per 450( $0.94 each)
Pieces 450
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 3-1/4
Material Steel
Grade Grade 8
Finish Yellow Plated
Head style Hex
Threads per inch 18
Thread style Partially Threaded
Weight 35.0 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 1/4". These high-strength fasteners deliver dependable performance for demanding industrial, automotive, and construction applications.

Specifications

  • Thread Size: 5/16-18
  • Length: 3 1/4" (3.25") under head to tip
  • Material: Grade 8 Steel
  • Finish: Zinc Yellow Plated
  • Head Style: Hex Head Cap Screw
  • Drive Type: Hex
  • Origin: USA Made

Designed for superior torque and secure clamping, these screws pair with standard nuts and washers rated for 5/16-18 threads. The zinc yellow plating provides corrosion resistance in mildly harsh environments, while Grade 8 steel offers high tensile strength for critical fastenings. Install with a standard hex wrench or socket sized for the hex head to achieve proper torque and a secure fit.

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