SloRider125 Posted September 17, 2021 Share Posted September 17, 2021 I've just gone to bleed my front caliper, and those pesky screws on the cover rounded off, so I've had to drill them out... The screw caps came off, and luckily there was enough thread to undo the broken screws by hand. I have Pan Head screws which I have checked and do fit. however these are not countersunk. Probably a silly question... Can I use these Pan Head screws until I can get the proper ones delivered from Fleabay, so I can bleed the brake today, or is having the correct screws essential for the sealing of the unit? Thanks Quote Link to comment Share on other sites More sharing options...
Gerontious Posted September 17, 2021 Share Posted September 17, 2021 It depends on how the screws fit. whether or not they are independent of the covers actual seal. most are in my experience. but its something you should check. If they are then it won't be a problem until you can get the correct screws that are better looking and don't stand proud. Quote Link to comment Share on other sites More sharing options...
TimR Posted September 17, 2021 Share Posted September 17, 2021 (edited) Reason being the screw heads are Jis ... For future get a set of drivers from Halfords https://www.halfords.com/tools/hand-tools/screwdrivers-and-hex-keys/sealey-4pc-jis-screwdriver-set-453366.html Edited September 17, 2021 by TimR 1 Quote Link to comment Share on other sites More sharing options...
fastbob Posted September 17, 2021 Share Posted September 17, 2021 If you have a plastic plate and a rubber diaphragm inside the master cylinder you can definitely get away with conventional screws for now . Quote Link to comment Share on other sites More sharing options...
SloRider125 Posted September 17, 2021 Author Share Posted September 17, 2021 Unfortunetly being an outdoor bike, that was kept under a shelter, until the wind ripped holes in the canvas, thus rusting up the external screws, so I think even with the Japanese standard tools, it would of had trouble. No point in reusing rusty screws anyway. So will replace with proper countersunk screws maybe with Hex head. I'll just bleed the brake once i get the screws. I believe its the standard Nissin Caliper set. Thanks Quote Link to comment Share on other sites More sharing options...
fastbob Posted September 17, 2021 Share Posted September 17, 2021 And dip them in Copperslip ! Quote Link to comment Share on other sites More sharing options...
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