Metric and Standard Thread Checker with 14 Sizes

Quick Identification

Simply screw the nut or bolt onto our thread checker to instantly measure the size. Our standard and metric thread checkers allow you to quickly and easily check nuts and bolts for the correct size, making it easy to replace broken, loose, rusted, or worn parts.

Excellent Quality

Crafted from thick aluminum alloy and hardened SUS304 stainless steel, our bolt and nut identifier gauge is very sturdy and well-made. This ensures durability and reliability in various working conditions.

Extensive Size Detection

With 28 distinct sizes, our nut and bolt thread checker excels in identifying 14 metric thread sizes and 14 standard thread sizes. This comprehensive tool provides quick identification of the right thread size and pitch, saving you time and effort.

High-Precision

Manufactured with high-precision machinery, our thread checker ensures that every bolt and nut meets Go & No Go Class 2B ANSI standard specifications. This guarantees accuracy and top-quality performance.

Multifunctional Design

Built-in rulers measuring 6 inches and 14 centimeters on both sides, the screw thread gauge helps you quickly identify different lengths of bolts, screws, and nuts. This feature adds versatility to the tool, making it indispensable for any workshop or repair task.