Lumax LX-3511 Gold/Silver Drive Type Straight 0.56" Long Grease Fitting for 5/16" Diameter Hole, (Pack of 100)

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, are zinc plated with a yellow passivated finish for maximum protection against corrosion and have a stress relieved and tempered carbon steel spring. Every fitting is individually inspected and batch tested to 5,000 PSI and are designed to meet the demanding requirements of most automotive, agricultural, industrial, marine, truck, federal, and construction equipment needs.