For more than 25 years, Stage 8 has been manufacturing highly effective active mechanical locking systems that lock fasteners in place in critical automotive and heavy equipment applications. Stage 8 guarantees its locking fasteners will keep critical bolted joints tight in the most-severe operating conditions. Summit Racing carries a wide selection of Stage 8 products, including header bolt kits, locking spindle nuts, header collector bolt kits, locking bolt kits, locking oil pan bolt kits, exhaust nuts, intake manifold bolts, and more! Lock it down with Stage 8 locking fasteners. Shop Summit Racing today!