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66755 - PROFORM Wedge-Locking Header Bolts M8 Thread Diameter - 1.181" Long (Set of 12)
These permanently assembled bolts feature special washers with super-hardened serrated teeth that, when sufficiently torqued, the washers bite into and grab 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. Engine vibration increases the tension, making them even more secure! They are re-useable and you can count on them to not fail. Sold as one complete set of 12 pieces with …
Product #: 66755
In Stock Now!
MSRP: $32.99 set
Classic: $29.99 set