“Zerk” nipple-style grease fittings are named for their inventor, Oscar U. Zerk.
Arthur Gulborg of the the Alemite Co. invented (1919 ?) the world’s first pin - and button-type fittings that temporarily sealed to matched couplings on the end of pressurized grease guns
. Those early grease fittings are now called Alemites.
In 1922, Oscar Zerc patented the ball or nipple-type grease fitting; which the Allyne-Zerk Co. manufactured until 1924, when the Alemite Co. purchased them.
Monel Fittings withstand the most severe marine
and industrial corrosive environments. Monel is a nickel/copper alloy that is highly resistant to corrosion
. All Alemite Monel fittings have a single
notch on the hex for identification.
All Alemite Stainless Steel fittings have two notches for identification.