PROFORM 66752 APPLICATION SPECS:

Exhaust Header Bolt; Universal; 3/8 - 16 Inch Thread Size; 3/4 Inch Length; Locking Bolt; Hex Head; Black Oxide; Steel; With Wedge Locking Washers; Set Of 16

Each PROFORM® Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ Feet Pounds, 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. It’s 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.

• Bolt Type: Universal
• Head Type: Hex Head
• Head Size: 3/8 Inch
• Thread Size: 3/8 Inch-16
• Length (IN): 3/4 Inch
• Finish: Black Oxide
• Color: Black
• Material: Steel
• Washer Type: Wedge Locking

Proform 66752 WEDGE-LOCKIN HDR BLTS 3/4L X 3

PRODUCT FEATURES:

Proform 66752 WEDGE-LOCKIN HDR BLTS 3/4L X 3

FAQ

What part number is this? The listed part number is 66752.

Is this product designed for direct replacement? Confirm the original part specifications and intended application before ordering.

Should I confirm compatibility before ordering? Yes. Compare the original part and specifications before ordering.

Common Searches

• Proform 66752
• 66752 specifications
• Proform Exhaust Header Bolt; Universal; Proform 66752 WEDGE-LOCKIN HDR BLTS 3/4L X 3