Each PROFORM Grade 8 Collector Bolt and Nut combo is permanently assembled with two pairs special locking washers. When the combo is tightened, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the flange. 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. 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. PROFORM Collector Bolts can be untightened with a normal wrench, lubricated, and reused. Sold as a set.
Product Details:
- Exhaust Collector Bolts and Nuts
- Wedge-Locking Washer Technology
- Hex Head Type
- 3/8-16 Thread X 1.25 Inch Long
- Black Oxide Finish
- 6 Pcs in kit
- Sold As A Set
- Style:
- Bolt
- Locking:
- Yes
- Head Style:
- Hex
- Material:
- Steel
- Finish:
- Black oxide
- Nuts Included:
- Yes
- Washers Included:
- Yes
- Thread Size:
- 3/8 in.-16
- Quantity:
- Sold as a set of 6.
- Notes:
- These are Grade 8 and have a 1.00 in. length.
