Proform Wedge-Locking Header Bolts 66752

Description

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, 3/4″ long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.r

Attributes:

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• GTIN: 00037995667529

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• Brand Name: Proform

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• Applications: Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 413

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• Color: Black Oxide

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• Diameter: 3/8-in.

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• Feature/Benefit: Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.

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• Finish: Black Oxide

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• Length: 3/4 inch

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• Material: Steel

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• Part Type: Header Bolts

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Extended Information:

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• Country of Origin: Taiwan

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• Emissions : Released

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• Life Cycle Status: Available To Order

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Packing Information:

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• Quantity of Each: 1

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• Package UOM: EA

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• Dimension: 6.75 x 4.5 x 1.75 inches

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• Weight: 1 lb

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