<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 smaller sizes often overlooked, making it a perfect bolt size finder for portable use, DIY tools, mechanic tools, and workshops</p> <p>COMPLIES WITH AMERICAN UNIFIED THREAD STANDARD : The Namoka Thread Checker Gauge is a precision tool for accurate bolt size and thread gauge SAE and metric identification. Complies with ANSI B1.1 for 2B internal and 2A external threads, ensuring compatibility and performance. Made from SUS304 stainless steel, it offers durability and corrosion resistance for demanding environments</p> <p>EFFICIENT DUAL-PANEL DESIGN : Separates small and large thread sizes for quick identification. The ergonomic design allows one-handed holding while aligning threads 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 USABILITY : Features 2 hanging holes and 4 fixing holes for flexible installation. The Bolt Identifier Board integrates a nut and bolt sizer, while optimized bolt spacing prevents overcrowding, ensuring faster and more efficient measurements</p> <p>COMPACT, PORTABLE, AND MULTI-FUNCTIONAL : The lightweight design of the nut and bolt thread checker inch &amp; metric simplifies thread checking and saves space. Built-in inch and centimeter scales double as a bolt size chart and nut size finder, offering unmatched versatility for on-site repairs, workshops, and DIY projects</p>