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Home/All Parts/Proform/Proform Wedge-Locking Header Bolts Hex Head 3/8 dia. X 1in Blk Oxide Finish 16 Pcs — 1" (66824)
TRACKED DELIVERY
Product Details
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 sixteen Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
Weight: 0.65 lb
Confirm this fits your vehicle. Use the “Check Fit” selector, or see the Vehicle Compatibility list below for confirmed years, makes and models.
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | Proform |
| Part number | PFM66824 |
| Category | Exhaust & Performance |
Vehicle Compatibility
| Years | Make | Model |
|---|---|---|
| 1999–1999 | Chevrolet | B7 |
| 1965–1975 | Chevrolet | Bel Air |
| 1965–1972 | Chevrolet | Biscayne |
| 1973–1974 | Chevrolet | Blazer |
| 1969–1972 | Chevrolet | Brookwood |
| 1975–1980 | Chevrolet | C10 |
| 1968–1974 | Chevrolet | C10 Pickup |
| 1968–1980 | Chevrolet | C10 Suburban |
| 1990–1993 | Chevrolet | C1500 |
| 1975–1986 | Chevrolet | C20 |
| 1968–1974 | Chevrolet | C20 Pickup |
| 1968–1986 | Chevrolet | C20 Suburban |
| 1991–1999 | Chevrolet | C2500 |
| 1992–1999 | Chevrolet | C2500 Suburban |
| 1975–1986 | Chevrolet | C30 |
| 1968–1974 | Chevrolet | C30 Pickup |
| 1988–1999 | Chevrolet | C3500 |
| 1991–1999 | Chevrolet | C3500HD |
| 1969–1969 | Chevrolet | C50 |
| 1968–1969 | Chevrolet | C60 |
| 1999–1999 | Chevrolet | C6500 Kodiak |
| 1979–1980 | Chevrolet | C70 |
| 1999–1999 | Chevrolet | C7500 Kodiak |
| 1967–1972 | Chevrolet | Camaro |
| 1966–1976 | Chevrolet | Caprice |
| 1965–1973 | Chevrolet | Chevelle |
| 1968–1968 | Chevrolet | Chevy II |
| 1965–1974 | Chevrolet | Corvette |
| 1966–1975 | Chevrolet | El Camino |
| 1969–1970 | Chevrolet | Estate |
| 1996–1999 | Chevrolet | Express 3500 |
| 1973–1974 | Chevrolet | G10 Van |
| 1976–1976 | Chevrolet | G20 |
| 1973–1974 | Chevrolet | G20 Van |
| 1975–1976 | Chevrolet | G30 |
| 1988–1996 | Chevrolet | G30 |
| 1973–1974 | Chevrolet | G30 Van |
| 1993–1996 | Chevrolet | GP3500 |
| 1965–1976 | Chevrolet | Impala |
| 1976–1976 | Chevrolet | K10 |
| 1980–1980 | Chevrolet | K10 |
| 1968–1974 | Chevrolet | K10 Pickup |
| 1968–1974 | Chevrolet | K10 Suburban |
| 1976–1978 | Chevrolet | K20 |
| 1968–1974 | Chevrolet | K20 Pickup |
| 1968–1974 | Chevrolet | K20 Suburban |
| 1985–1985 | Chevrolet | K20 Suburban |
| 1991–1999 | Chevrolet | K2500 |
| 1992–1999 | Chevrolet | K2500 Suburban |
| 1977–1977 | Chevrolet | K30 |
| 1980–1986 | Chevrolet | K30 |
| 1968–1974 | Chevrolet | K30 Pickup |
| 1988–1999 | Chevrolet | K3500 |
| 1976–1978 | Chevrolet | K5 Blazer |
| 1969–1972 | Chevrolet | Kingswood |
| 1970–1975 | Chevrolet | Monte Carlo |
| 1969–1972 | Chevrolet | Nova |
| 1973–1973 | Chevrolet | P10 Van |
| 1976–1976 | Chevrolet | P20 |
| 1979–1979 | Chevrolet | P20 |
| 1970–1971 | Chevrolet | P20 Van |
| 1973–1973 | Chevrolet | P20 Van |
| 1975–1999 | Chevrolet | P30 |
| 1970–1974 | Chevrolet | P30 Van |
| 1987–1988 | Chevrolet | R20 |
| 1987–1988 | Chevrolet | R20 Suburban |
| 1989–1989 | Chevrolet | R2500 |
| 1989–1991 | Chevrolet | R2500 Suburban |
| 1987–1988 | Chevrolet | R30 |
| 1989–1991 | Chevrolet | R3500 |
| 1969–1972 | Chevrolet | Townsman |
| 1987–1988 | Chevrolet | V20 Suburban |
| 1990–1990 | Chevrolet | V2500 Suburban |
| 1987–1988 | Chevrolet | V30 |
| 1989–1991 | Chevrolet | V3500 |
Proform Wedge-Locking Header Bolts Hex ...
PFM66824
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