Large Head Quik Fastener .500in Long Body

The Large Head Quik Fastener .500in Long Body from MOROSO is a professional-grade quick-release fastening system engineered for high-performance engine and accessory assembly. Designed for technicians and engine builders who demand rapid assembly and disassembly without sacrificing reliability, these self-ejecting fasteners eliminate the need for traditional bolts and nuts in applications where speed and repeatability are critical. The 3/8-inch head diameter combined with the 0.500-inch body length makes this fastener ideal for securing intake manifolds, valve covers, and other engine bay components where clearance and quick access are essential.

Constructed from hardened steel with zinc plating for corrosion resistance, the Large Head Quik Fastener features a flush head design with slotted engagement for positive fastening control. The self-ejecting mechanism automatically releases the fastener when turned counterclockwise, reducing assembly time and operator fatigue during engine teardown or maintenance. The slotted design ensures secure engagement with standard screwdrivers, preventing cam-out and cross-threading that can damage fastener and component surfaces. Each set includes ten fasteners, providing sufficient quantity for typical engine accessory applications.

Engine builders, drag racing teams, and professional automotive shops benefit most from this fastener system, particularly in applications requiring frequent disassembly for tuning and maintenance. The zinc-plated steel construction resists oil, fuel, and heat exposure common in engine compartments, ensuring long service life and consistent performance across multiple assembly cycles. Installation requires no special tools beyond a standard screwdriver, making these fasteners compatible with any engine platform using corresponding threaded ports.