Receipt will be included for full manufacturer's warranty. Quick connect and disconnect for fast air tool changes with reduced wear on threaded fittings. For use with most 1/4 in. body quick-connect studs. Industrial-style studs with 1/4 in. NPT male threads. Universal Quick-Connect coupler accepts industrial, automotive and ARO studs (sold separately) Product Specifications Dimensions and Weight: Item Weight : 0.18 (lbs.) Overall Dimensions: NPT male threads : 0.25 in. Product Overview: Type: Connectors