DELUXE PRO 5.0 HANDLE fits ALL PRO50 shifters + others. THIS is the HANDLE you have ALL been asking for !!! ACCEPTS ALL PRO 50 KNOBS and most POPULAR aftermarket ones. THREAD is 12mm X 1.75 pitch SAME as factory OEM :) comes with NEW bolts and Washers for EASY 5 minute install FEEL THE IMPROVEMENT immediatly !! THIS handle is make of STEEL and will never break ! WE USE IT IN ALL OUR race cars. BEWARE of cost reduced look - a - likes made of ALUMINUM !! THEY are only 1/2 as strong as PRO 5.0 ALL STEEL HANDLE . ANY QUESTIONs PLEASE call 908 361 - 5839 WE ARE HERE TO Help YOU !!!!!!!!