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Proform Parts 66756 Wedge-Locking Header Bolts 3/8-16 x 1 Inch Hex Head Black Oxide 16-Pack

(Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74 + 56 more models)

Manufacturer

Picture for manufacturer Proform Parts

Part Number

66756
17 reviews
Sale Price

$37.95

2 left at this price

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

Proform Parts Wedge-Locking Header Bolts eliminate the constant need to re-tighten collector bolts without clips, pins, safety wire, thread locker, or other fastening compounds. These innovative bolts feature wedge-locking washers with super-hardened external teeth that bite into both the bolt head underside and the flange surface, creating a secure connection that resists loosening from vibration.

Key Features:

  • Wedge-locking design uses tension instead of friction to maintain torque
  • Pre-assembled wedge-locking washers with hardened teeth prevent bolt loosening
  • Grade 8 (metric 12.9) hardened steel construction for maximum strength
  • Black oxide finish provides corrosion resistance
  • 3/8"-16 thread size, 1 inch length hex head bolts
  • Reusable design - simply lubricate and reinstall
  • Oil contact actually enhances the wedge-locking effect
  • Installs and removes with standard wrenches

Each set includes sixteen hex head bolts with pre-assembled wedge-locking washers, providing everything needed for typical header collector installations. The wedge-locking technology blocks vibration-induced loosening while maintaining easy installation and removal for service or maintenance.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990-93, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1966-76, C10 1975-80, El Camino 1966-75, Monte Carlo 1970-75 + 51 more models

Color

Black Oxide

Part Type

Header Bolts

Material

Steel

Finish

Black Oxide

Length

1 Inch

Pretty fast and painless.

good

It was quick n easy

Simple, easy, fast, thank you.

They had a better price than anyone else on the internet for the part I needed. And the shipping was fairly quick.

Great so far.

very good

great prices, good communication (rec'd email with fed ex tracking info), and quick delivery. thank you, i'll definitely be back!

Es la 1ra vez q compro y aun no se

So far so good

The application will work but I have to modify it slightly as the bolt circle in a little undersized for my application.

I like the "pay with amazon" quick link

Website was super easy. Shipping remains to be seen.

fast and easy competitive pricing

We found what we needed at the right price.

Had the cheapest parts I could find, shipped within 2 days. Very reasonable shipping rates.

Very good price on item. Shipped and arrived in very good time. Good communication.

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