Hex head is 17mmAF

Pitch, coarse at 1.5

Length 45mm overall, 40mm below head. with about 12,, of unthreaded shank

In good condition, unused, but stored awhile

Will be sent in jiffy bag or similar 250gm Large Letter size package.

Heads marked TL 8.8

I have several of these to clear from my garage, so will combine postage  for more than one set of five