An exact reproduction of the OEM Zerk type grease fitting. Used in numerous applications such as early springer forks, wheel hubs, seat bushings, brake pedals, shift linkage and rear fork. Can be used in custom applications where hole size accepts 5/16-32 thread. Fits all models 1936-1986. Replaces H-D# 9851 & 0344. Made in the U.S.A.