The are comparable protective coatings and will not affect the function of the tool

FXSTB and FXDWG

Chrome plated stock style oversized (9/16-18) drain plug used on all 2000-up Big Twins

#SHC-983 3/8-16 x 1-1/4 length Chrome Socket Head Allen Bolt - 10 Pack

as the rear leg is threaded 1/2"-20

Four Speed Transmission Mainshaft Nut Wrench Adapter Makes_Suzuki The are comparable protective coatingsThis Four Speed Transmission Mainshaft Nut Wrench Adapter works with a 3 8" ratchet to loosen and tighten Harley Davidson 4 speed mainshaft sprockets. It was designed to pack flat in your tool box or you can throw them in your tool bag for on the road repairs. Don't use that crescent wrench! Beefy 1 4 stainless steel, made in Ohio.