In any industry, you would find the screws and the nuts as basic tools. These tools require checking at regular intervals. An ill-fitting screw can spell havoc for the machinery. Therefore, it becomes imperative that you check the screws and the nuts using implements known as the thread gauges. The industry workers use the gauges to inspect the cylindrical parts such as shafts and holes. One of the most common implements used is the Go and the No Go gauges.