Quarter-Turn Fasteners • Quick Release • Assemblies
Turnlock fasteners &
quick release solutions
Engineer-grade quarter-turn panel fasteners for aerospace, automotive, and industrial machinery. Designed for fast access, consistent clamping force, and vibration resistance.
Need the correct grip length?
Use our selection guide to match panel thickness, stud type and receptacle for the perfect fit.
Start selection guide
Engineering response: ~1 hour
Choose your turnlock series
Select the right quarter-turn fastener based on your load requirements and application environment.
Light duty
Compact fasteners designed for electronics, small access panels, and light covers where space is limited.
Fast access for service panels
Low profile / Limited space
High-frequency opening cycles
Medium duty
The industry standard. Perfectly balances physical size with high clamping strength and vibration resistance.
General machinery & enclosures
Strong clamping & repeatability
Widest configuration options
Heavy duty
High-strength quick release system built for high vibration, shear loads, and demanding harsh environments.
Aerospace, rail & heavy transport
Ultimate vibration resistance
Rugged / Harsh duty cycles
What is a Turnlock (Quarter‑Turn) fastener assembly?
A quarter-turn fastener is a quick release panel fastener that locks and releases with a simple 90° turn.
Turnlock assemblies are used when panels need to be opened often for inspection or maintenance. Compared with screws, quarter‑turn fasteners can reduce service time and improve consistency in clamping and retention.
Turn‑Grip™
Innovation
High shear strength and clamping force without a receptacle—ideal for modern clamping designs.
SpanClamps™ high performance
Built to withstand high side loads and maintain dependable clamping force through heavy duty cycles.
