loading

Wedge-Locking Collector Bolts (6pc.) | #66757

Wedge-Locking Collector Bolts (6pc.) | #66757

Wedge-Locking Collector Bolts (6pc.) | #66757

$26.95
star_border star_border star_border star_border star_border No reviews yet edit Write a Review
SKU:
66757
Fitment:
Grade 8, Black Oxide Finish; 3/8 in-16 Thread Diameter; 1 in Long Set of 6 Nut & Bolt Combos and 12 Wedge-Locking Washers

Wedge-Locking Collector Bolts (6pc.)

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:
  • Wedge-Locking Washers Secure with Tension, Not Friction
  • Eliminates Need to Constantly Re-Tighten Exhaust Collector Bolts
  • For Six-Bolt, 3/8"-16; 1" Length Applications
  • No Clips, Pins, Racing-Wire, Retainers or Gunk to Deal with (& Lose!)
  • Hex Head Type, Grade 8 (12.9) Steel Bolts; Black Oxide Finish
  • Use with Regular Wrench; Take-Off & Reuse
  • PROFORM Parts Brand Product
Proform warrants its new products to be free from defects in material and workmanship under normal use and if properly installed for a period of 12 months from the date of purchase. Products used in racing applications or products that have been physically or mechanically altered, improperly installed or maintained, or used in improper applications are not covered under this warranty.