SMC Locking D

The enduring design of the SMC Locking D has become the standard in rock climbing, mountaineering and rescue applications as well as in an ever increasing base of industrial applications due to its high strength, light weight, wide gate opening and functional versatility. The nut of the locking sleeve engages on the gate - not on the carabiner frame - this helps prevent jamming or vibrating loose. Through continuous inspection throughout production, careful attention to detail and precision craftsmanship we consistently manufacture product at the highest levels of quality.