1.25 in. Header Bolt Kit for Big Block Mopar

's Grade 8 locking header fasteners use a patented system that consists of a grooved hex-head bolt or nut, a retainer, and a snap clip. The retainer fits over the bolt head and locks the bolt against the header tube, and the snap clip holds the retainer in place. Once header fasteners are tightened down, they won't back out, eliminating leakage and blown header gaskets from loose bolts.

• Material: Alloy Steel
• Size: 1.25 in.
• Weight: 0.76 lbs