DZUS FASTENERS
https://files.southco.com/static/Literature/D9.en.pdf#Quarter-Turn-Fasteners-D9-47
DZUS® D9 Tech Line Quarter-Turn Fastener combines Southco’s proven quarter-turn and captive fastening technologies to create a next generation solution that provides consistent, reliable clamping force and quick access. The DZUS® D9 Tech Line Quarter-Turn Fastener features a captive, spring-loaded design and tool-free operation that prevents over tightening.
