Self Eject Quik Fastener .650in Long Body

The Self Eject Quik Fastener .650in Long Body from MOROSO is engineered for high-performance engine builders and transmission specialists who demand reliable, repeatable fastening solutions in tight underhood spaces. This self-ejecting fastener design addresses a critical pain point in modern automotive assembly: the need for quick-change components that don't require secondary tooling or manual extraction. Whether you're building a competition engine, servicing a high-revving powerplant, or installing transmission pans and covers repeatedly, this fastener eliminates downtime and reduces the risk of cross-threading or damage to expensive aluminum castings.

The .650-inch long body profile provides optimal engagement depth while maintaining a compact footprint—critical when working around tightly packaged cylinder heads, fuel rails, or valve covers where standard fasteners prove problematic. The self-ejecting mechanism uses spring-loaded precision engineering to automatically retract or release once fastening pressure is relieved, eliminating stuck fasteners and improving workflow efficiency in both shop and track environments. MOROSO's manufacturing standard ensures consistent material hardness and spring tension across production batches, meaning you get predictable performance run after run without variation that could compromise seal integrity or create vibration-induced loosening.

Professional mechanics, engine builders, and hot rodders benefit most from stocking this fastener for repeat applications on oil pans, timing covers, breather components, and modular engine accessories where speed and reliability matter. The compact 5.4 x 1.65 x 7.15-inch packaging makes it easy to organize in a toolbox or shop cabinet, while its light 0.31-pound weight won't burden a service kit. Installation is straightforward—no special adapters required—making it compatible with standard fastener sockets and impact tools used throughout professional shops and serious amateur builds.