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