For those of you who want a proper quality drag bolt with axial ball bearings to your 3 lamella connection.
Drawn and constructed by Stefan Wirén.
The drag bolt is manufactured in Sweden
Comes complete with reinforced clutch spring nut and rivet.
Instruction for setting the coupling is included.
Obeserva that the coupler has edges internally that may need to be ground slightly, it happens sometimes but not at all, no difficulties but check this when mounting.