2021 gt pro series 26 inch. We cut the lugs off to get the wheel off. Would anyone know what size replacement or even where to get it?
According to https://www.gtbicycles.com/can_en/pro-series-26 the bmx comes with:
Rear Hub : Alloy Thread-on Disc Body, Sealed Bearings, Cr-Mo 3/8" Slotted 14mm Axle, 36h, 17mm Nut.
So you need a complete replacement 14mm axle, and probably new nuts as well.