Quality Magazine

Thread Inspection

October 28, 2009


The Universal ThreadChecker is an application-specific sensor system designed to check for thread presence and absence. Designed as a go/no-go tool, the device discriminates between threaded and unthreaded holes or studs and provides both analog and switched outputs. It offers thread detection for nearly all thread specifications, including both internal and external threads, and ferrous and nonferrous materials, including aluminum. The device’s universal electronics can be used with any size sensor or probe without factory recalibration. The six sensor models-2-, 4-, 6- and 10-millimeter diameter probes for internal threads, and 6- and 12-millimeter diameter probes for external threads-give the device the ability to inspect hole sizes from M3 through M14, and stud sizes M4 through M10.