McMaster 1089K11 Pin-Style Grease Fitting Straight, 1/8 PTF Male, Brass

The pins on these fittings lock with dispensing tips for pin-style fittings to create a tight seal. Their brass bodies resist corrosion. They have a check valve that prevents grease from leaking when pressure causes backward flow. The valve stays closed when not in use to keep out dirt and other contaminants. They have PTF-SAE and NPTF (Dryseal) threads, which are compatible with NPT threads. GZSP-2, ALE A336, 62WA92

Brass Body—Brass fittings are more corrosion resistant than zinc-plated steel fittings.