OZ split rim bolt measurements

[cuneus]

Has anyone got one handy they can measure, if so I would like the following

Thread length
Head diameter
Underside of head to end of bolt

TIA

[wedgienauld]

thread length 12mm
length of bolt, (shank), 22mm
dia of head, assuming you mean dia of 'shoulder' of bolt( 11mm)

[wedg1e]

Four posts in 9 months? Must be a busy man...