China Wire Thread Inserts suppliers The locking device of self-locking type threaded braces consists of a series of locking strings of unique design, which will radially deflect when engaged with the screw or bolt, and the deflection degree is enough to allow the installation of the bolt. When the bolt enters, these flat segments bend outwards, putting pressure on the bolt. Pressure is applied to the side of the bolt thread to maximize the tooth area. The self-locking screw maintains locking torque for countless assembly cycles.China Wire Thread Inserts suppliers website: