Doubler Plate Square Spring Eject Hex Head

The Doubler Plate Square Spring Eject Hex Head fastener is a precision quick-turn component engineered for professionals who demand reliable, hands-free fastening in high-speed assembly environments. Designed with a self-ejecting mechanism and flush-profile head, this fastener eliminates manual removal steps and reduces assembly cycle time—critical advantages in aerospace, defense, and tactical equipment manufacturing where efficiency and consistency matter. The set of four aluminum units arrives black anodized for corrosion resistance and clean integration into modern tactical platforms.

Each unit features a square spring-eject design that automatically expels after torque application, eliminating the need for secondary hand-removal operations. The hex drive geometry provides superior bit engagement and reduces cam-out risk during installation on standard hex drivers and impact tools. Machined from aluminum and finished with black anodized coating, these fasteners deliver lightweight construction without sacrificing durability or corrosion protection. The 7/16 inch diameter body with 0.550 inch depth specification positions this fastener for use in compact, space-constrained tactical and modular equipment assemblies where oversized hardware is impractical.

Tactical equipment builders, gunsmiths, and assembly operations benefit from this self-ejecting design when installing components on rail systems, stock adapters, and quick-detach mechanisms where fastener removal speed directly impacts field usability. The flush head profile ensures zero snag points and maintains aerodynamic integrity on streamlined platforms. Installation requires standard hex-bit tools; the spring eject function activates automatically upon completing the fastening cycle, making this an ideal choice for high-volume production runs and field-serviceable modular designs where tool-free fastener retrieval is essential.