This leveller has the standard 3/8-16 thread, 1-3/4" diameter base, 3" shaft.
This heavy duty leveller is tough, just like leg levellers used to be! This IS NOT the widely distributed economy leg leveller with the flat bottom that have become the norm lately.
A zinc plated tightening nut is included with each leg leveller.
Williams/Bally reference #08-7377.