Nut and Bolt Thread Identifier - Multi-functional thread identifier supports imperial and metric measurements, making it a versatile tool for professionals and DIY enthusiasts. - Pre-drilled mounting holes: 3 holes for wall mounting or attaching to a toolbox for easy access and storage. - Accurate size comparison: quickly and precisely compare thread sizes to ensure you select the right nut or bolt for any project, improving efficiency. - Aluminum alloy construction: sturdy, durable, and designed to withstand daily use while maintaining reliability and accuracy. Use scenarios - Automotive repair and maintenance: verify thread size on fasteners before replacement to avoid incorrect parts. - Construction or home improvement: confirm bolt and nut compatibility during assembly to prevent delays. - Retail or workshop environments: help customers or teammates quickly identify matching threads and speed up service.