Columbus Supply

SMC's Large Steel Locking D Carabiner was developed especially for the needs of the fire and rescue communities with a large gate opening that easily fits over litter rails. Each carabiner is 100% hand-inspected for gate action and other functional characteristics before leaving the factory. If you want a carabiner that performs the just as well after 100 jobs as it did the first time you used it then this is the one to buy.

Heat-Treated Carabiner

All the features and benefits of SMC's Large Steel Locking D Carabiner with the increased strength (an additional 40%) that results from being heat-treated.

Stainless Steel Carabiner

When the working environment results in exposure to corrosive elements, and a larger gate opening and higher breaking strength are necessary, the Large Stainless Steel Locking Carabiner is the appropriate choice.

NFPA Certified

All SMC NFPA products are third party tested (by Underwriters Laboratories - UL) as required by NFPA 1983 (2001 edition) standards.