double ended screw-in wheel studs
 

Does any body sell OR do I need to go to meachine shop to get Double ended screw-in wheel studs that is 5/8'-18 thread at one end and 1/2"-20 thread at the other end .,My axles take are screw-in 5/8-18 and my weld wheels are smaller lug holes ,1/2holes ( Lug holes to small ) to take the 5/8 studs ,double ended studs OR DRILL out wheel holes? ,Please help anybody had this problem ,Thanks

Contact the axle manufacturer. I've not seen dbl sized studs before,not saying they aren't made, but you might have to have the wheel stud holes enlarged at a machine shop.

Either use 5/8 wheel nuts and a torque wrench or have the axles refilled for 1/
2...

Die grinder dude !!