Butterfly Quik Fastener .650in Long Body

The Butterfly Quik Fastener .650in Long Body by MOROSO is a self-ejecting quick-turn fastener engineered for rapid assembly and disassembly in high-performance automotive and mechanical applications. The wing-head design provides ergonomic leverage for fast hand-tightening without tools, making it ideal for engine bay components, hood latches, and removable body panels where quick access and repeated fastening cycles are essential.

Constructed from steel with a zinc-plated finish, this fastener resists corrosion and oxidation across diverse environmental conditions. The 5/16-inch diameter shaft and 0.650-inch body length are precision-engineered to fit standard quickie fastener receptacles found on performance engine covers, radiator shrouds, and modular intake manifolds. The self-ejecting mechanism automatically releases the fastener when fully disengaged, streamlining removal during maintenance and component swaps. This set includes 10 fasteners, providing coverage for typical engine bay configurations.

Mechanics, engine builders, and motorsports enthusiasts rely on Butterfly Quik fasteners to reduce downtime during hot-weather diagnostics, filter changes, and seasonal component replacements. The smooth action and secure hold eliminate the frustration of stripped screws or stuck fasteners, while the toolless design accelerates workflow on the race trailer or in the shop. Engineers specify MOROSO quickie fasteners across OEM and aftermarket performance builds where reliability and speed matter equally.

Quick-turn fasteners represent a category upgrade over traditional bolts and screws in applications requiring frequent access. The Butterfly design distributes hand pressure more evenly than lever-style alternatives, reducing hand fatigue during extended use. MOROSO's zinc plating meets automotive corrosion standards, protecting against salt air, engine heat cycles, and moisture exposure.