Thread Detective TH-COM-------HC Thread Gauge, Steel, 20-1/2" x 2"
This thread gauge is a precise and easy-to-use thread identifier for both nuts and bolts, consisting of gliding gauges conveniently assembled onto a wire lanyard.
Metric Thread Identifiers contain nut and bolt sizes of: M4 X .7, M5 X.8, M6 X 1.0, M8 X 1.0, M8 X 1.25, M10 X 1.0, M10 X 1.25, M10 X 1.5, M12 X 1.25, M12 X 15, M12 x 1.75