ProForm

66752

66752 Proform Wedge-Locking Header Bolts - 3/8-16 X 3/4 L 16 Bolt Kit

EAN: 0037995667529

UPC: 037995667529

Header Bolts

Locking header bolts
3/4" L x 3/8

Each PROFORM® Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, 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.

2009-2011 Yamaha YFM550FG/FGP Grizzly Fi 4x4 All ATV Oil Filter
Genuine Hyundai 45681 39010 Return Spring 45681-39010
Mix me 4140