60 count Detachable Thread Checker Kit: Nut and bolt thread checker kit includes 30 standard & 30 metric sizes. Every thread checker is inserted into a black box with a storage rack. Whether checking threads in tight spaces or heading to the hardware store to replace a missing nut or bolt, this thread checker is easy to carry and use. Simply take it out and identify the exact thread size you need—far convenient than traditional wire or plate-style thread checkers.

Materials & Craftsmanship: Our SAE and metric thread checker sets are crafted from high-quality for durability and precision. To make size easier, SAE threads are color-coded in blue, while metric threads are marked in red. Each thread gauge features -engraved markings that are wear-resistant, clear, and built to last. This nut and bolt thread checker is a -have tool—and a —for professionals and DIY enthusiasts alike.

30 SAE Sizes in Blue: #2-56, #3-48, #4-40, #5-40, #6-32, #6-40, #8-32, #8-36, #10-32, #10-24, 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, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 7/8"-9, 7/8"-14, 1"-12, 1"-8

30 Metric Sizes in Red: M2-0.4, M2.5-0.45, M3-0.5, M3.5-0.6, M4-0.7, M5-0.8, M6-0.5, M6-1.0, M7-1.0, M7-1.25, M8-1.0, M8-1.25, M8-1.5, M10-1.0, M10-1.25, M10-1.5, M12-1.0, M12-1.25, M12-1.5, M12-1.75, M14-1.5, M14-2.0, M16-1.5, M16-2.0, M18-1.5, M18-2.5, M20-1.5, M20-2.5, M24-2.0, M24-3.0

3 Easy Ways to Read Sizes: A standout feature of this screw gauge set is the ability to clearly and easily identify sizes in three different ways: each gauge has its size clearly engraved, there is a printed size chart an art paper sticker, and the sizes are also screen-printed the holder. The sizes the correspond directly to the individual thread gauges, allowing you to identify, match, and select the correct gauge when you only need at a time.

Quick and Time Saver: Simply screw the nut or bolt onto the thread gauge to check the size in just seconds. With the thread checker for both standard and metric sizes, you can easily and identify the correct size of nuts and , making it simple to replace broken, loose, rusted, or old ones at or in your garage. This the need for trips to the hardware store, significantly boosting your work efficiency.

Stay Organized: This nut and bolt organizer includes 60 male and female thread gauges, covering the commonly sizes for everyday tasks. It helps you sort and organize mixed nuts and with ease. This portable thread measuring tool is ideal not only for mechanics, electricians, engineers, and pipefitters working mechanical projects but also for various improvement tasks.