Stage 8 Locking Header Fastener Kits

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Upgrade your exhaust hardware with Stage 8 Grade 8 Locking Header Fasteners. These patented fasteners include a grooved hex-head bolt or nut, a retainer, and a snap clip. The retai ner fits over the bolt head and locks it against the header tube, while the snap clip holds the retainer securely in place. Once installed and tightened, these fasteners won't back out, eliminating blown gaskets and exhaust leaks caused by loose bolts. Perfect for performance engines, headers, and exhaust manifold upgrades. Patented locking system: bolt, retainer, and snap clip Prevents fasteners from backing out under vibration or heat Maintains proper header and gasket seal Grade 8 construction for maximum strength and durability Ideal for performance engines, exhaust manifolds, and cylinder head applications Show more