Grease Fitting, Zerk, Self-Tapping, 1/4"-28 Thread, 90 Degree

A 1/4-28 taper thread, 90 degree, 0.54 inch, self-tapping, grease fitting. It is used on most auto vehicles and on industrial equipment. The threads conforms to SAE lubrication thread specification. These fittings have a ball check in the head to prevent dirt and grit from getting into the fitting.

• heavier wall thickness for extra strength
• zinc plated with a yellow passivated finish for maximum protection against corrosion
• a stress relieved and tempered carbon steel spring.