Features 1、Accurate Measurement: Each thread gauge has clear markings, allowing you to quickly and accurately identify nut and bolt sizes, ensuring accurate measurements every time, improving efficiency 2、Easy Identification: Provides 26 pieces male and female thread checkers, including 14 inch and 12 metric specifications, convenient for quick comparison, which saves your time and cost 3、Stainless Steel: These thread size checkers are made of stainless steel material with galvanized markings, designed to withstand various conditions and prevent wear, with a long service life 4、Convenient Design: Each gauge can rotate freely on the steel rope, providing fast and simple thread verification. The convenient ring facilitates hanging and storing tools, improving convenience 5、Application: This nut bolt size gauge is suitable for various scenarios, including mechanical maintenance, construction engineering, home pipeline maintenance, etc., with a wide range of applications Specification Item Type: Nut and Bolt Thread Checker Material: Stainless Steel Thread Sizes: 14 Inch and 12 Metric Application: Nut and Bolt Size Identification Thread Types: SAE and Metric Package List 2 x Thread Gauge