mach 1 shift knob

[mach504]

1983-04 FORD MUSTANG FORD RACING 03-04 COBRA STYLE SHIFT KNOB, 5 SPEED PATTERN LEATHER is what I brought for my mach shift knob but there's is no screw attached to it so I can screw it on. The stock metal shift knob on mine has a screw attached to it to I can put it on.

 

[Roots-type]

Stock knob doesn't have a set screw. It just screws on like the FR one you have. Use Teflon tape wrapped clock wise when looking at the threads of the shifter arm from the top.