Are you still guessing at the size of nuts and bolts and going back and forth to the hardware shop?
Open this thread checking set and use the screw thread gauge inside to find out what size nuts and bolts you need.
This nut and bolt thread checker tool is also useful if you need to sort through that pile of randomly sized nuts and bolts, as you can solve the mystery of what size each one is.

Excellent item for the mechanic
Our nut & bolt thread checker is specially designed to verify the size of nuts and bolts in either inch or metric in an accurate, easier and faster way, especially suitable for mechanics, allowing them to quickly identify nut bolt size. It will be a good tool, it takes a few second for nut and bolt size check.

1. A rigid PVC plastic box storage case keeps each thread checker organized.
2. Three ways to read the size: each thread pitch gauge in this screw size and thread gauge tool box is engraved with the corresponding size, with the corresponding gauge size sticke inside the box and the EVA foam holder with the size of each gauge printed on it.
3. The bolt and nut thread checker/bolt identifier set makes it easy to check a fixing bolt or threaded hole by simply taking out the individual gauges, so you no longer have to rotate the whole thread checker on a wire.