<p>Wide Compatibility with 31 Thread Sizes: Accurately identifies metric (M2 x 0.4 to M12 x 1.75) and standard (2-56 UNC to 1/2-20 UNF) threads. Includes commonly overlooked small sizes, making it the perfect bolt size finder for portable use, DIY tools, mechanic tools, and workshops. </p> <p>Compliant with Unified Thread Standards: The Thread Finder Gauge is a precision tool for accurate bolt size and thread gauge SAE and Metric identification. Conforms to ANSI B1.1 for 2B internal and 2A external threads, ensuring compatibility and performance. Made of SUS304 stainless steel, it is durable and corrosion-resistant for harsh environments. </p> <p>Efficient Dual-Panel Design: Separates small and large thread sizes for quick identification. Ergonomic design allows one-handed holding while aligning the thread with the other hand. Its compact structure saves storage space, making it a practical addition to any toolbox</p> <p>Optimized design for convenience and practicality: Features 2 hanging holes and 4 fixing holes for flexible mounting. Bolt Identifier Board integrates nut and bolt sizing, and optimized bolt spacing prevents overcrowding, ensuring faster and more efficient measurement</p> <p>Small, portable, and versatile: The lightweight design of the nut and bolt thread checker simplifies thread inspection and saves space. The built-in inch and centimeter scales double as a bolt size chart and nut size finder, providing unparalleled versatility for field repairs, workshops, and DIY projects</p>