1/8" NPT Grease Fitting Standard Grease Sharp Type Nozzle Zinc Plated Silver Tone, 2pcs Designed for use with most hand-operated grease guns and air-powered equipment. Compatible with all 1/8" NPT threads, featuring a maximum operating pressure of 4500 PSI (310 Bar). This coupler attaches to grease guns that inject grease into standard grease fittings and is suitable for applications including lubricating motor vehicles, construction and industrial equipment, and aeronautics. For hand-operated grease guns exclusively. Zinc plated for superior protection against corrosion To avoid unnecessary after-sales issues, please confirm the model details with us before placing your order. Thank you for your understanding and cooperation; we wish you all the best.