Security lock case (comparable with security grade 5 according to EN 12209) with hardened bolt and drilling protection. The key can only be removed when the deadbolt is fully locked or retracted. 4181X is the microswitch version of the lock. The switch changes it’s status when deadbolt moves to 20 mm. Striker plate: 4690, 4691, LP710, LP711, LP714, LP721, LP731 Cylinder ABLOY® C, N, T, U Mortise standard SFS 5208, SS 81 73 83