I "believe" that the lower row of turrets here are the old RS turrets, compared to the upper row of Harwin turrets.
View attachment 104354
They were bought as RS turrets anyway (though I don't know for sure, could've been scammed). The diameter of the Harwin (between the two rings around the turret body) is 2.68mm View attachment 104355
The diameter of the RS turret (if it is RS) is 2.98mm
View attachment 104356
Yes, I know the old RS turrets need to be thoroughly cleaned with alcohol or something before they can be used. Cheers
Yes, I should have included that they are for use with the 3mm thick board material & required the standard 2.7mm diameter hole. CheersThe important measurements are the diameter and the length of what goes through the board. The measurement above the board is of less consequence, except for possibly matching OEM stuff. Either way, I'd get my turrets and my board, all from the same vendor to ensure the best compatibility!