ELJER 1/2"-27T H: 1 9/32"
MILWAUKEE 17/32-27T
YOUNGSTOWN 1/2"-20T H:7/16"
A.M. STD 1/2"-20T H: 3/8"
STERLIANG 1/2"-24T
A.M. STD 7/16"-24T H: 13/32"