We have a special length for 1/4-32 RC spark plug (GLOW PLUG) kit p/n 0142SP
The steel insert has a length of .180 inches with a copper coating for heat.
The kit will repair any 1/4-32 stripped glow plug that is .180 inches or 4.6mm.
Kit includes drill, counterbore, tap, install driver and 5 inserts & sealer.
The glow plug will now seal on the inserts flange preventing blow-by.
Sealer included p/n 6020 required on the external thread of the insert.
Below is a insert installed in a RC head.
radio controlled RC engine spark plug (GLOW PLUG) thread repair airplanes boats cars helicopter