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Mr. Gasket

Mr. Gasket 2231G Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16

Part # 2231G Be the first to write a review

Compatible with Chevrolet Big Block 396-454, Ford 289-351W, 426 Hemi, Ford 429/460

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Mr. Gasket 2231G Headlock Locking Header Bolts - 3/8-16 x 3/4 Inch - Set of 16

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Est. Ship Date: 09/16/2026

$54.62
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Headlock™ Bolts eliminate the need for lock washers, Period. That's because each Headlock™ Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Features:

  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
Brand Mr. Gasket
Emission Code5
Product TypeHeader Bolts
WarrantyManufacturer's Limited 90 Day
UPC084041040027
Manufacturer Part Number2231G
Part Number2231G
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Manufacturer's Limited 90 Day: See Details
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