The Kycon spec was updated to modify the dimension of the mounting hole from 1.5mm to 1.35 mm +/- 0.10 mm. for the part numbers listed below. The parts physically changed in 2011, but the spec was not updated. Please also note that the recommended screw is an M1.6 thread forming. Please contact a Mouser Technical Sales Representative for further information. 5-0613-6