SAE and METRIC Bolt and Nut Check a Thread Gauge This listing is for a 19" Wide x 3.5" Tall gauge High Contrast White on Black lettering. Angled design is great for wall or tabletop mount. Easy to mount brackets included. A must have for anyone who uses fasteners. Save a trip to the hardware store and check sizes on site. A great gift idea and great addition to any toolbox! Metric sizes include: M4-.70, M5-.80, M6-1.00, M7-1.00, M8-1.00, M8-1.25, M10-1.00, M10-1.25, M10-1.50, M12-1.25, M12-1.50, M12-1.75 Standard Inch Sizes include: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20