Hand Tools

44PCS Nut and Bolt Thread Checker, 10B21 Carbon Steel Thread Checker, High Accuracy Bolt Nut Identifier Gauge with Storage Box for Imperial and Metric Nuts 10B21 CARBON STEEL MATERIAL: Made from premium 10B21 carbon steel, this nut and bolt thread checker set is built to last, ensuring long term use without damage or deformation. HIGH ACCURACY TESTING: With the nut and bolt thread checker, you can... 44PCS Nut and Bolt Thread Checker, 10B21 Carbon Steel Thread Checker, High Accuracy Bolt Nut Identifier Gauge with Storage Box for Imperial and Metric Nuts