This bolt is a mechanical component of the Euchner CET-A-C safety switch series, used to secure guard doors that are hinged on either the left or right side. It is fitted to the door or guard as part of the interlocking arrangement, working together with the corresponding CET-A-C switch to enable safe monitoring of door position. Typical applications include machine guarding and panel enclosures where a door can be hung from either side depending on installation requirements.