You could also try replacing those screws with wider diameter ones? So if they're 4x40 at the mo try something like these?
@hvsds started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
You could also try replacing those screws with wider diameter ones?
So if they're 4x40 at the mo try something like these?