EMKA offers a comprehensive product range of ingenious locking technology from a single source. The modular program structure allows a unique variety of components: quarter turns, locking-systems, handles, hinges and gasketings. The high quality and product standards are guaranteed by an excellent manufacturing know-how and by the certified process control according to ISO 9001. The safety quarter turn with mask is a vibration-proof lock and is specifically designed keeping in mind the nature of installation location and operational conditions. It ensures specific checks and supplements measures of fastening. The version double bit comes with a key which is removable in the locked position and a keyhole for double bit as per key DIN 43668. It is noteworthy that only cams without a stopper can be used and the H-dimension would be reduced by 2mm when used with a finger pull.