Grease Fitting, Zerk, Self-Tapping, 1/4"-28 Thread, 45 Degree

Grease fittings provide a location within a machine or other mechanical system where grease can be forced into areas that require consistent, periodic lubrication. Under moderate to high pressure, grease fittings feed lubricants into a bearing using a grease gun. These grease fittings feature a pipe screw thread that conforms to NPT specifications. These feature a 45-degree construction with fine 1/4-in.-28 screw thread.