Threaded ring Usage: screw thread on the outer two rings were used to gauge to be detected (in any order) (1) through regulation, however, (screw not the past) pitch diameter larger, product failure (2. ) ended regulation by the small diameter, the product failed. (3) through regulation can rotate freely anywhere in the thread, only regulation twist or two three times, (but also more likely to tighten a sometimes twice, but screw head Ministry did not Chu ring end face) on the screw does not move, then state your external thread pitch diameter detected well within "tolerance zone" is qualified products. largest entity threaded ring thread gauge thread through the scale of the proposed test tooth type, test measured the diameter of the threaded role in diameter does not exceed its maximum tooth type of entity, and also examine whether the actual size of the bottom diameter exceeds its maximum physical size.

keywords: Threaded plug, threaded ring, smooth plug, smooth ring gauge, thread gauge,