[250 PKG] Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 X 3 1/2
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[250 PKG] Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 X 3 1/2

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[250 PKG] Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 X 3 1/2

Mutual ScrewSKU: 3756MWWKC
Price:
$206.63per 250( $0.83 each)
Pieces 250
Measurement type Inch
Thread size 3/8-16
Diameter 3/8
Length 3-1/2
Material Steel
Finish Zinc Plated
Head style Serrated Hex Washer
Threads per inch 16
Thread style Fully Threaded
Weight 26.0 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

Flange Bolts Serrated Hex Washer Case Hardened Zinc 3/8-16 x 3 1/2 are engineered for high-strength fastening with built-in load distribution and secure, vibration-resistant performance. Featuring a serrated hex washer and a durable zinc finish, these bolts deliver reliable performance in demanding applications.

Product Features

  • Material: Case-hardened steel with a zinc coating for enhanced durability and corrosion resistance.
  • Head style: Flange bolt with an integrated hex washer to distribute clamping force over a larger area.
  • Thread size: 3/8-16 UNC for strong, standard coarse-thread engagement.
  • Length: 3 1/2 inches, suitable for various mounting depths.
  • Finish: Zinc plating provides long-lasting protection against rust and wear.
  • Locking/Seating: Serrated hex washer helps resist loosening and provides a secure seating surface.

Specifications

  • Thread: 3/8-16 UNC
  • Length: 3 1/2 inches
  • Material: Case-hardened steel
  • Finish: Zinc
  • Head type: Flange with integrated hex washer

Why Choose These Bolts

Ideal for automotive, machinery, and equipment assemblies where secure fastening and load distribution are essential. The flange design spreads torque over a larger surface, while the serrated washer minimizes loosening under vibration. The case-hardened steel and zinc coating deliver strength and corrosion resistance for long-term reliability.

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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