SAE and Metric Bolt Gauges Check a Thread Nut Fastener Size

These are awesome. I was sick of going to the hardware store and hoping their test rack set would have what I needed as everyone time I'd go there more nuts/bolts were missing from their test racks. Since buying these I know exactly what I'm looking for when I go to the store, and have saved myself a ton of aggregation already. I tend to take a pic of what the size is and dont even have to write anything down. It's been working great.

11.19.23. This is my second set. The first was for the auto shop we have and this is for the home shop. With the price of nuts, washers and bolts going outrageously expensive; especially metric it was time to sort the bolts and nuts I have. Once you have spent some time sorting you save a lot of time knowing what you have before buying new. I bought two small metric bolts locally for over $3 and then later found some used ones in a bucket. If I did that 30 times excluding time and gas it would pay for the tools. I have bought some other checkers but they are a waste of time compared to these. Company has fast shipping and great to deal with. Highly suggested for the high quality.

If you wrench like I do, you always end up with all kinds of extra bolts and nuts, all different types and sizes. Which is great, but not. Because if you don't know what type or pitch or size it is, you will never use it when you need it. I have seen these things in hardware stores and always thought man, I could really get all of my excess bolt/nut collection in order so I know what I have, and I've gone through about half of what I have, and what a blessing. These take the guesswork out of all of it. Now I know when I need a certain size it's right there in the right bin. No more guessing, fitting, etc. Grab and go. Worth every dollar.

My only complaint is that they used cheap grade 2 nuts and bolts for the price u pay for this product. Other than that works well for finding the thread on nuts and bolts.

Quality item, sure to survive weekly use in a busy shop. The mounting points and base are robust.

It is exactly what we needed. We have several nuts and bolts and will be doing more sorting. This is perfect for what we need. My get another one for the other shop so we don't have to go between buildings.

This a great set to have, at an affordable price. The numbers are very clearly marked. The rails and threads seem solidly made and durable so far. It has more thread size options than most of the other options I’ve seen online. The colors also make choosing the right set easy.

I am old and I do not jump on any purchase that I think is not a good value. Someone was very proud of this item and they should. I can't say worth the money but it sure has been very helpful. Now there are several less expensive bolt gauges out there. The deciding point for me was Ford f150. As many of you know Ford has a tenancy to use whatever they have, they run out that, they use something else in production. Don't believe me work on one of them. The F150 in question has 12mm and a 14mm wheel studs I read something saying they used a 1/2" stud. Okay two possibly three different sizes now what pitch. This is the only one I found with the 12mm and the 14mm. Made my life a little easier.