A grease fitting, grease nipple, Zerk fitting, grease zerk, Alemite fitting, or divit is a metal fitting used in mechanical systems to feed lubricants, usually lubricating grease, into a bearing under moderate to …

Word History Etymology Oscar U. Zerk †1968 American (Austrian-born) inventor First Known Use

Choose from our selection of Zerk grease fittings, including grease fittings, grease fitting assortments, and more. Same and Next Day Delivery.

Dec 24, 2025 · The Zerk fitting, often called a grease nipple or grease point, is a small but specialized component that plays an outsized role in the longevity of mechanical systems.

Jan 20, 2021 · Simply put, a zerk is a fitting that lets you inject grease lubricant into wear points on cars or trucks. This allows smooth, steady movement and better overall handling.

Equip your garage or workshop with high-quality grease zerk fittings. Tackle hard-to-reach areas with angled options for efficient machinery maintenance.

Jan 4, 2023 · A Zerk is a grease fitting on machinery that needs oiling or lubricating so as to reduce friction or wear on moving metal parts. The Zerk is installed on machines by a threaded connection, …

Metric and imperial thread patterns dominate grease zerk designs. While North American equipment typically uses UNF threads, European machinery often requires metric fittings.

Featured Products M6 x 1mm x 17.3mm Straight Metric Grease Zerk Fitting 2 Pc $2.95

Huge selection of grease fittings of all types including aerospace, taper thread, straight thread, pipe thread, NPT, drive type, button head, stainless steel, and more.