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Proform
Proform 66751 Wedge-Locking Header Bolts Hex Head 3/8 dia. X 3/4in Black Oxide 12 Pcs
Proform 66751 Wedge-Locking Header Bolts Hex Head 3/8 dia. X 3/4in Black Oxide 12 Pcs
Regular price
$34.95 USD
Regular price
Sale price
$34.95 USD
⬡Mechanic Division pricing available
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10 in stock
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Description & Features
Proform 66751 Wedge-Locking Header Bolts Hex Head 3/8 dia. X 3/4in Black Oxide 12 Pcs
PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with twelve Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 3/4" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
Specifications
| Bolt Grade | Grade 8 |
| Color | Black Oxide |
| Head Drive Type | Hex |
| Material | Steel |
| Thread Type | Fine |
| Feature/Benefit | Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations. |
| Category | Header Bolts |
| Part Type | Header Bolts |
| Applications | Fits GM V6, SB 265-400, Buick, Olds, Pontiac 79 and earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8in bolts |
Packaging Information
Weight: 0.65 lbs
Dimensions: 6.75 x 4.5 x 1.75 IN
Warranty
1 Year Warranty
⚠ Fitment Notes
- Hex Head; 3/8 dia. X 3/4in Black Oxide
- 3/8 dia. X 3/4in Black Oxide; Hex Head
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Vehicle Fitment
Vehicle Fitment
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