Composite rating for fastened and machined parts: scores tightening torque, hardness and dimensional deviation against tolerance.
紧固件拧紧扭矩、硬度、尺寸偏差三项检测工具,依据GB/T 16823、GB/T 230、GB/T 1800等标准判定合格与否。适用于螺栓、螺母等紧固件的质量检测。