CMTOOLThread Checker Standard and Metric, Nut Bolt Size and Thread Gauge Set, Aluminum Alloy Bolt Measuring Tool Identifier Board, Screw Size Checker

I have been wanting one of these for years. We had one in our shop at work that was given to us by a vendor. I finally saw this on sale at Amazon. Great purchase!!

Two attempts. No joy on a quality item. Easy to see that the item is incomplete (see picture). Otherwise, this seems like it would be a good product.2024-Feb-05 Update: the seller quickly sent a replacement which was perfect. As initially noted, the product is solid and just like what you'd find in a hardware store. Ironically, the first one appears to have been lost by the post office and showed up 3 days after the replacement sent directly by the vendor.

A worthwhile tool to have, but be aware that it doesn't cover size 12-24. (I think that may be a common Home Depot size as I seem to have a lot of them!). Once you know, it's no problem to hang a nut & bolt of that size on the unit.

All I can say is, I wish I had this in my garage 40 years ago! What a great reference tool! The quality is outstanding. Seems to be made to last a lifetime. I can whole heartedly recommend this tool!

All of these seem too pricey but I’m glad I bought it. This brand is heavy and solidly made. Threads are smooth.

Seems like it’s well made and should last forever if you are careful with the aluminum threads. Checked a few bolts with no issues. I also like they have the correct fine and course labels. A lot of the other ones I see on Amazon are mislabeled.

I have about 2 million nuts, bolts, and screws I have collected over the years.......546,000 of them are unsorted. I plan to use this gizmo to finally sort them......then, I'll die.

This is a very sturdy product. I use it in my shop all the time now all of the threads on it are nice and solid making it easy to identify what size screw you you have. I should have bought this many years ago.