The screw and screw must be really clean ... Loctite 271 will prevent your screw to open, but you will reopen by forcing a little .... The reference 271 is more powerful than the 243 planned for the screws but not undergoing excessive stress or vibra
For effective tightening and that "moves" not ... nothing like a drop of Loctite thread lock. "Blue" or "red" as the constraints that will protect fasteners subject, but already the "blue" to be good enough in most
