If you know which thread size you require please make your selection.
5mm will fit Mexican and Japanese made Fender Strats and some Squier Strats.
6mm will fit Chinese Squiers and some copy Strats.
US 10-32 will fit all American made Stratocasters.
If you do not know which thread size your guitar has you can send us your
existing tremolo arm and we can accurately measure it and supply the correct size.