The above measurement photo is in the millimetre
Neck,Middle,Bridge Set Single Coil Pickup Bobbin,fits Fender
Winding your own custom Strat pickup.
String Hole Spacing:52mm,fits Fender
Mounting Screw hole 3.1mm,fits Fender mounting screw
If you use this bobbin to winding your own Strat pickup,it will fits the Genuine USA Fender