Description
Attributes
- 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
Product Description
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.
Features & Benefits
- Permanently Assembled With A Pair Of Special Washers
- Simple Wedge Locking. Can Be Untightened With A Normal Wrench, Lubricated, And Reused
- No Little Clips Or Retainers To Handle
- Oil Actually Improves Performance
- Limited 1 Year Warranty
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