O.S. Engine OS79870031 M3 Fang Nuts 6 pcs  [OS79870031]

Replacement M3 fang nuts for engine mounts

This kit includes six M3 fang nuts intended as replacement fastening hardware for RC engine assemblies and accessory mounts. Supplied as a compact accessory pack for hobby-scale models, these nuts help keep engine mounting hardware secured during setup and field use.

Installation is simple: match each nut to the corresponding M3 stud or screw used on your engine mount or accessory bracket, place the fang-style face against the mating surface, and tighten to a torque suitable for model hardware to avoid thread damage. These are suited as spare fasteners when rebuilding or adjusting an engine bay or accessory cluster.

In maintenance and tuning routines these spare fasteners are practical rather than performance parts; they help preserve mechanical joints after adjustments to mounting plates, carburetor linkages, or accessory brackets, and are handy to carry as replacements in a pit box.