YKK Americas Group’s WA40CW adjuster is fire-resistant, heat-retardant, UL-certified, NFPA 2112 compliant, and designed to function under the most demanding conditions and harsh environments for FR workwear. YKK’s WA40CW adjuster was made to 40mm so as to accommodate a thicker 1.5” (38mm) webbing.

Made of high performance thermoplastic resin.

Pairs well with our WB40CW fire-resistant and heat-retardant buckle.

Registered by UL to NFPA Standards 1971, 1975, 1977, 1999, and 2112.

View fire-resistant and heat-resistant buckle and adjuster catalog.



High Performance Thermoplastic Resin
Fire/Heat Resistant Flame Retardant Heat resistant