Seals drilled holes 0.250"-0.350", Hex size 5/16", plug length 0.54", pointed bottom. 24TPI, hardened 4140 steel.
Tighten into a drilled hole in steel pipe to create a seal, stopping the flow of gas or water. No tapping required. Plugs cut their own threads. Hex head for easy tightening. Custom plugs available.