You can select the most suitable methods for thread manufacturing based on your needs, and similarly, you can customize thread inspection according to precision, functionality, and other requirements. Generally, if thread tolerance and strength are not primary concerns, ready-made bolts and nuts can be used for shop-floor inspections. These inspections are passed when the nuts and bolts fit together successfully. However, if tolerance and thread strength are critical, advanced inspection techniques such as thread gauges, the 3-wire method, micrometers, vernier calipers, projectors, and coordinate measuring machines should be employed for precise measurements. For a basic introduction to thread inspections, refer to the previous case study by Apporo.

In the highly demanding precision industry, every aspect from design, materials, manufacturing, and post-manufacturing processes, to even packaging, is carefully considered to ensure product quality and functionality during mass production. Take the design approach of one of Apporo’s clients, a Swiss dental equipment supplier, as an example. Their handheld dental equipment must be comfortable for long-term use, prevent occupational injuries, and conform to ergonomic standards. Therefore, details like size and center of weight design are given utmost importance.”