[1000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/16-18 X 1 1/2
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[1000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/16-18 X 1 1/2

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[1000 BULK] Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/16-18 X 1 1/2

Mutual ScrewSKU: 3124MWWKC
Price:
$641.16per 1000( $0.64 each)
Pieces 1000
Measurement type Inch
Thread size 5/16-18
Diameter 5/16
Length 1-1/2
Material Steel
Finish Zinc Plated
Head style Serrated Hex Washer
Threads per inch 18
Thread style Fully Threaded
Weight 41.0 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

Secure fastenings with our Flange Bolts Serrated Hex Washer Case Hardened Zinc 5/16-18 x 1-1/2. Designed for heavy-duty applications, these bolts combine a flange head with a serrated hex washer to distribute clamping force and resist loosening under vibration.

Crafted from case-hardened steel and finished with zinc plating, they deliver excellent strength and corrosion resistance for prolonged service in automotive, machinery, and industrial equipment assemblies.

Key features

  • Size & thread: 5/16-18 UNC thread, length 1-1/2 inches.
  • Head style: Flange head with a built-in serrated hex washer for uniform load distribution.
  • Material & finish: Case-hardened steel with zinc plating for durability and corrosion resistance.
  • Vibration resistance: Serrated washer helps prevent loosening during operation.
  • Applications: Ideal for automotive, machinery, equipment, and industrial assemblies where a strong, reliable flush mounting is required.

For best results, ensure proper thread engagement and use with compatible nuts and washers as part of a secure fastening system.

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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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