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Nut and Bolt Thread Checker
Stalye is a well-established brand that focuses primarily on delivering innovative and affordable power & hand tool accessories which are meant to make your job easier and improve worker efficiency, without compromising on safety or comfort. We rely exclusively on premium grade materials and trustworthy manufacturers, in order to meet your highest quality expectations.
Complete Inch/Metric Nut and Bolt Thread Checker for Precise Measurements
The Stalye bolt size and thread gauge perfectly combines durability with accurate measuring scales, allowing you to rapidly and easily measure and verify the thread of nuts and bolts simultaneously! Made with premium grade, rustproof steel, with each gauge rotating freely on the wire, this thread checker will become an essential tool in your kit!
Make sure your bolts and nuts are always the correct size with this premium thread checker standard and metric!
Still not convinced? Here are some of the amazing features of this thread checker:
- Material: high speed steel;
- Thread sizes are permanently engraved on each gauge for easy identification;
- Male/female threaded stud;
- Rapid and efficient way of measuring sizes;
- Highly accurate, no mismeasurements;
- Sturdy assembly on wire loop for user-friendly and convenient storage.
nikkolaus
2025-08-30 17:15:34
This product is well-made and very helpful, when sorting a bunch of small parts. The only issues I had with it is that 1) One of the pieces within the string of measuring devices had text etched that was off-center and nearing the edge (did not effect functionality, cosmetic only) and 2) There was an instance where I was able to mix a bolt which was standard and it fit into a metric slot. Not sure if that's the tool's fault or the hardware's fault, but it pretty much matched the threads 3 of the 4 times I tried it, but since I had others of the same type fit in the standard hole, i knew it had to be a false-positive result.I would worry that the cable would fray over time, but we can cross that bridge when we get to it.These measuring units are easy to use and slide easily along the twisted-wire cable theyre held onto. The laser etching is easy to read, and matches the reverse of the color theyre printed on (so if on white the text is black - If on black, the text is white.) The nice thing about these is that they dont JUST do bolts and screws... On the reverse of every measuring device is the matching NUT pattern to go with it.You can do bolts and nuts at the same time, to make sure they match up. You can also do stuff that has flared shielding on it, and stuff that has other hardware on it, like locking rings, as long as they dont get in the way of the threads. Be careful with Loctite. You can do it, but it binds up a bit, and will also get stuck inside if it's flaky.This truly is an all-in-one multi-purpose tool.
Ryan R.
2025-08-22 14:53:18
I have a rolling bolt bin and I hang this off the side. Makes quick work to identify nuts and bolts. It's good quality and worth the money. I'd buy it again for sure.
Mr. Meyer
2025-07-26 11:13:27
Heavy, sturdy and well made. All threads are clean and well cut. The size markings are clear and easy to read. I was kinda skeptical when I ordered it but figured it's returnable if it was of low quality. But I will not be returning it, this is a great addition to my shop tools! I can now identify thread pitch and size without getting my tap and die set out guessing with the thread pitch guage. Great value for the money!
Jordan
2025-07-11 09:38:16
I like it but I wish you could take them off so i could spin them around easier. I ended up cutting the end off.
Customer
2025-06-13 20:56:57
Perfect for the metric motorcycle bolt replacement.
V.Hernandez
2025-05-23 11:01:30
It does what it's supposed to do, nuts and bolts, it's not rocket surgery.
Nate Sewell
2025-05-01 16:01:10
The full chain with both metric and standard is a bit heavy and unwieldy if you need to check something overhead. It would ben much better to have at least 2 wires, one for standard and the other for metric, since you rarely need to mix the two on a single project. That's being extremely nitpicky though.The quality of what I received seems great. The markings are nice and legible. It's a big set. There are a few in between sizes that are still missing, like #12-24, but they're not super common. This has got more sizes than most bolt checkers at the big box stores.
cofend
2025-04-26 14:31:17
This is awesome especially if you have a nut drawer! One trip of if you’re bored you can organize them!
D.Forbes
2025-04-19 11:34:54
I like the product, have only had it a month and has come into good use on a couple occasions. However when checking the threads on a Toyota Corolla’ battery holder bolts, I noticed the 1/4-20 bolt/thread checker was missing the female thread portion. Fortunately I noticed this with 3 days remaining the return window. That said, back it goes and will replace it with identical model. I just wanted to share this so all you peeps are sure to do your own quality control checks on the item before it’s to late if a replacement is necessary.
Carbor Undium
2025-02-19 14:22:37
Es una excelente herramienta para comprobar rosca de tuercas y tornillos métricos e imperial, pero es difÃcil de manipular porque viene todo en una sola tira de cable de acero. Yo los saque del cable y ahora los uso por separado de su cable original.
Craig S.
2025-01-31 13:26:44
So after ordering wrong pitch bolts (a couple of times) for a motorbike build, decided to get a set of these. Do what they say and will save me more than they cost by guessing thread pitches wrongly, and wasting money!!! If like me you cannot tell a pitch or want to check a bolt size etc, these are a great addition to your tool kit.
MARU
2025-01-23 20:44:12
Práctico si el tornillo a medir aún no está fijo en muro
Joe Snow
2025-01-21 16:50:43
This thread checker leaves you in no doubt about what size thread you need - width and whether it is metric or imperial. Just get your bolt and insert it into the nuts to see what size it is, and the same for checking nut sizes. Each nut & bolt is clearly marked - even on the chrome ones. The nuts & bolts come on a strong steel cable so they won't get lost.The downside is the cost. Wowsers! This must cost about a fiver to make but I paid £60 on Amazon, because I couldnt buy it anywhere else. The reason is that you can't make a mistake with this tool and it will last a lifetime, eventually paying for itself by stopping me from buying the wrong nuts / bolts that are simply labelled "M8" without the thread size.
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