Müller Martini 0031.3027. Hex Lock Nut

The hex lock nut, also known as stop nut, jam nut, or self-locking nut, from Müller Martini with part number 0031.3027. is a mechanical fastening nut that secures a screw connection against unintentional loosening. It has the dimensions 1 x 2 x 2 cm and weighs 0.01 kg. Lock nuts feature a special clamping or deformation device that creates increased frictional engagement on the thread, thereby increasing operational safety. Typical applications are found in mechanical engineering, automation technology, vehicle manufacturing, and in the assembly of systems and devices where high connection reliability is required.