PROUDLY MADE IN THE USA                                                                                                                                   These bungs are very low profile.  Overall length is only .550: long. Thick enough to not warp from welding, Strong enough for most projects, Small enough to not add excessive weight to your project. To use them  just drill a small hole ( 11/16" ), place them in the hole and weld them.  These have a M8 x 1.25 internal thread. The od. of the bung is .905" The shoulder diameter is.670" The hat thickness is .200"  Shoulder length is .350" long.  This is for ten pieces.Use them to mount anything you want to tanks, seats, frames, anywhere you need threads to mount most anything.  Made from 1018 mild steel.                                                                                IF YOU NEED MORE THAN WE HAVE LISTED, LET US KNOW AS WE MAY HAVE MORE IN STOCK!