28 Standard and Metric Nut and Bolt Thread Checker Bolt and Nut Identifier Gauge
1x Nut and Bolt Thread Checker. For Identif y 28 D ifferent S ize Bolt, Nut, Screw Threads. M achined to high accuracy to ensure each bolt and thread conforms to standard gauge. P ut in the toolbox, easy to carry to different workplaces.