Ok guys I have a clutch master cylinder ready to be installed. Problem is when I try to bench bleed it my bleeder screw doesn't stay in the threads. Is there a special type of bleeder screw you guys use? I bought a bunch and one is the correct thread size, but doesn't work. Any ideas?

 

just install it. forget the bench bleed bs. keep the reservoir full and pump the pedal with your arm with the slave bleeder open. got a friend helps. or buy a vac kit from harbor freight.