Easily install a bleeder screw anywhere in your brake or clutch system! This special banjo bolt has a 1/4-28 bleeder screw so you can bleed air out of the system directly at the master cylinder instead of pumping the air all the way through to the caliper. The shank of this bolt measures 20mm (0.77") long. Copper Crush Washers (Part No. 3241-3/8) sold separately.