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 Small model of the Cylinder quarter turn, manufactured by Emka Beschlagteile, consists of a zinc plated designed safety washer or an earthnut. It is composed of a plated accesory with a zinc die or polyamide GF black architecture. Furthermore, the quarter turn consists of a zinc finished stainless steel cap.