PR66754



$52.34

inc. GST


SKU: PR66754

BRAND: Proform

Wedge-Locking Header Bolts - Nickle Finish
Suit GM LS Series, M8 x .948" UHL (12-Pack)


Out of Stock
Register to Buy

Each PROFORM Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers interfacing, matching cams. Its an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.

Features:

  • Grade 8 (12.9) Steel
  • Hex Head Type
  • .984-inch Length
  • Fits GM LS Engines with 1/4-inch Wide Flange
  • Sold as One Set of 12 Pieces

Product Reviews for PR66754 - PROFORM


My Rating:
My Name:
Review Title:
My Review:
This product has yet to be reviewed
To be the first to review this product simply fill out the form to the left and let us know how you feel about this product!


loader