Metric/Imperial Nut & Bolt Thread Checker

Accurately measures and identifies threads. 14 Imperial (6 to 1/2″) and 14 Metric (M4 to M14) sizes in coarse and fine pitches. Easy-to-read markings make male and female versions of each size easy to identify.

• Designed to accurately measure and identify threads, this tool ensures you select the right fastener every time, whether you are working with fine or coarse threads.
• With 14 Imperial (6/32 to 1/2″) and 14 Metric (M4 to M14) sizes, this thread checker accommodates a wide range of common nut, bolt, and screw sizes, making it very versatile.
• Easy-to-read markings, male and female versions of each size are easy to identify.
• Includes length checker on either side of board – one edge is metric and the other is imperial.
• Sizes: Imperial; (6-32C to 1/2-20F), Metric; M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0, M8-1.25, M10-1.0, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75, M14-1.5, M14-2.0.
• Made from a premium alloy giving a long lasting performance.
• Lightweight and compact, it can be carried to site or stored in a toolbox.
• Model No. AK28