I believe this is the correct fitting. BSPT Grease Fittings, BSPT Zerk Fittings, BSPT Grease Zerks I know some people screw in a 1/8" npt fitting which is a 27 thread per inch fitting. Proceed at your own risk. 1/8-28 fitting zerk | eBay
Parts issues
- Thread starter HK45
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