Want to protect your Servo that is mounted on axle?
These are the answer:
NOTE: Holes for screws made so screw is flush, not sunk in.
Made from a one piece block of aircraft grade aluminum. CNC Precision in the USA.
Fits most servos, Reef's has tested on these:
REEFS 422HD, Triple4, Triple5, Savox1230, HiTec 7950TH