Shopping Cart

Your cart is empty.

Your cart is empty.

Nut and Bolt Thread Checker, 14 Metric & 14 Standard Sizes, Bolt Nut Identifier Gauge with Inch and Centimeter Ruler, Solid Aluminum Bolt Size and Thread Gauge, Hang or Flat, Red

Free shipping on orders over $29.99

$27.99

$ 13 .99 $13.99

In Stock

1.Color:Black


2.Size:1 Pack


  • Quickly Identify Nuts and Bolts: Do you have many fasteners in bins or boxes? Do you want to catalog these nuts and bolts and get them quickly? No more to run to the hardware store, hang this professional-quality thread checker up in your garage (Or flat it in your workbench) and it will serve you well for the rest of your life!
  • Easy and Fast to Use: The bolt size and thread gauge featured 16.5L x 4W with 1/4 inch thick. It has 14 metric sizes and 14 standard sizes with inch and centimeter ruler. It can identify 28 distinct sizes, including metric thread sizes from M4 x 0.7 to M14 x 2.0, and standard threads from #6 - 32 FINE to 1/2 - 20 FINE. An absolute must-have if you're working with different fasteners on regular basis.
  • Made of Solid Aluminum: This thread checker is manufactured from thick aluminum that's been anodized and then laser etched. Very sturdy and well-made. Nuts and bolts thread easily for accurate measurement and read. It also has three holes to hang it on the wall to save your space.
  • Ideal for you: No need to run to the hardware store again! It helps you recognize in seconds without guessing. Organize the messy bolts and nuts, this nut and bolt gauge is ideal for mechanical engineers, DIY tool lovers, auto repair, etc.



Product Description

nut and bolt thread checker
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Laser-etched, clear, wear-resistant & never scratched
No more to run to hardware store!
Quickly recognize the messy nuts and bolts with high accurate identifier
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Dimension

HOP PH
2025-08-03 13:30:46
This is one of those tools you wish you’d bought a long time ago. Now that I finally have it, I’m really happy I did. It’s super easy to use, saves a ton of time, and is versatile, making tough jobs a lot easier. I like the new color better, but the contrast makes the text a bit hard to read from far away. It’s a huge time-saver and cuts down on hassle. If you’ve got some extra cash and often work with nuts and bolts, it’s definitely worth it. I’ve always been curious about these products and am getting okay with impulse buys. Up close, it works great. The studs don’t seem to get much torque with normal use, but I twisted them as hard as I could by hand, and it felt solid with no movement. I’m really pleased with it; it’s well made. I’d go for the more expensive two-piece option since you can mount the gauge on the wall and move it around as needed, instead of being stuck using it in one spot.
Smedley
2025-07-05 18:04:40
I will use in my shop to quickly determine the size of screws and nuts. Both metric and standard threads, fine and coarse threads. Well constructed complete with holes to hang on the wall. Excellent.
C. Johnston
2025-06-28 17:18:38
This is one of those purchases, where you are like, “where have you been my whole life!” This has saved so much time and energy and frustrating trips to the store.Ridiculously easy to use, sturdy, and has a feature to hang on the wall. As a team who loves to fabricate, rebuild cars, and work with metal and wood, We love this purchase! And tell all our friends, the price is so minimal for the time saver! Great purchase- would do again, but we don’t need to! And love this on sturdy structure. Also purchased a “string” version for other applications that can’t be removed easily.
MDW
2025-06-15 10:55:41
This product is a handy addition to my workshop. It is a well built product that should help me for many years to come!
Just a Facilities Guy
2025-05-18 12:49:27
By far my best A-zon purchase ever. This item is rugged anodized aluminum with stainless machine screws. If you demand quality, buy this and you will not be disappointed. If you’re happy with junk, you wouldn’t even be reading this, you would have bought something plastic.
Cmarius
2025-04-18 13:07:01
This bolt/nut sizing tool is fantastic. The backplate is made from 1/4" solid aluminum, the markings are all very easy to read, even without my glasses. The bolts are all stainless steel - confirmed by testing with a magnet, no magnetic pull. And, the threads are all machined perfectly. Even the little bolts have a slight chamfer at the end. This is an industrial-grade tool, you won't be disappointed.
Skibum61
2025-03-26 10:34:31
This saves me time in identifying nuts and bolts and save me trips to the store. I should have bought one years ago.
Richard R. Jenkins Jr.
2024-12-23 10:56:59
I have had other products similar to this but they were plastic. This one is made of good quality metal. It is not flimsy and it’s thick and strong. Will be nearly indestructible unlike the plastic ones. The fact that it has metric and SAE along with fine and course threads puts it stars above the plastic ones which didn’t have these features. The price point is very reasonable for something of this quality. I use it a lot in the measuring of bolts and nuts in my work on my land. What could be simpler as I am not as good at guessing sizes as I once was. Would recommend to anyone needing this type of product. I would buy again if the need were to arise. I leave mine right beside my toolbox for quick and easy access.
Recommended Products

$49.72

$ 24 .99 $24.99

4.8
Select Option

$9.99

$ 4 .99 $4.99

5.0
Select Option