spanner head bolt

[Frank S]

Ever try to locate a 1/2" bolt with a 2" diameter flat head?
if you find them let me know.
Until then I'll have to make my own
starting with a 1/2" bolt bussing the head down to about 1/8" in thickness very minorly rounding the hex sides then welding a hardened washer to them
I use a 1/2" coupling nut as the collet


Place the bolt in the holding fixture

Then clamp the washer with spanner holes drilled in it on the fixture

A little welding and I have made some special bolts