Quick Fastener Winged 5/16 x.400 Steel

The Quick Fastener Winged 5/16 x.400 Steel fastener is engineered for demanding applications where secure, repeatable fastening is non-negotiable. Whether you're building tactical platforms, assembling modular equipment, or maintaining critical infrastructure, this MOROSO fastener delivers the reliability demanded by law enforcement, military, and professional operators. The winged design facilitates rapid hand-tightening without tools, making it ideal for field-expedient assembly and quick maintenance cycles where seconds count.

Manufactured from hardened steel, the Quick Fastener Winged 5/16 x.400 specification provides superior corrosion resistance and tensile strength compared to standard fasteners. The .400 inch length and 5/16 diameter offer optimal clearance and thread engagement for modular tactical components, optic mounts, rail systems, and accessory interfaces. The winged configuration increases lever arm and grip surface, allowing operators to achieve consistent torque specifications by hand—critical when field conditions or equipment configurations prevent wrench access. Steel construction ensures longevity through repeated installation cycles without galling or stripping.

This fastener is ideal for armorer-level builds, field repairs, and systems requiring quick-change capability without compromising security. Operators, gunsmiths, and equipment maintenance personnel will appreciate the balance between hand-operability and holding power. The 5/16 x.400 sizing is compatible with most standard tactical rail interfaces, Picatinny systems, and modular equipment platforms. Keep multiple fasteners on hand for inventory management, replacement kits, or platform-specific builds where redundancy ensures mission readiness.