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15 Metric Thread Sizes：
4mm x 0.7, 5mm x 0.8, 6mm x1.0, 7mm x 1.0, 8mm x 1.0
8mm x 1.25, 10mm x 1.0, 10mm x1.25, 10mm x 1.5, 12mm x 1.25
12mm x 1.5, 12mm x 1.75, 14mm x 1.5, 14mm x 2.0, 16mm x 2.0
19 Standard Thread Sizes:
6-32 Coarse, 8-32 Coarse, 10-24 Coarse, 10-32 Fine, 12-24 Coarse
1/4-20 Coarse, 1/4-28 Fine, 5/16-18 Coarse, 5/16-24 Fine, 3/8-16 Coarse
3/8-24 Fine, 7/16-14 Coarse, 7/16-20 Fine, 1/2-13 Coarse, 1/2-20 Fine
5/8-11 Coarse, 3/4-16 Fine, 5/8-18 Fine, 3/4-10 Coarse
8 Different Sizes Drill Gauges
Φ4, Φ6, Φ8, Φ10, Φ12, Φ14, Φ1/4, Φ1/2
Jason Robertson
Reviewed in the United States on February 6, 2025
I recently purchased this Nut and Bolt Thread Checker, and I have to say, it's been an absolute game-changer in my shop. This tool is incredibly useful for quickly and accurately identifying different thread sizes, which has saved me so much time and hassle. I no longer have to guess or manually compare threads, and it's perfect for a wide range of nuts and bolts.The build quality is top-notch, and it feels solid and durable, even with daily use. It’s very easy to use, and I appreciate how well-organized the markings are—each thread size is clearly labeled, making it easy to find the right fit on the first try. Whether I'm working on small projects or more complex jobs, this tool helps me avoid mistakes and ensures that I have the correct thread every time.If you’re in any kind of workshop or dealing with various fasteners regularly, this tool is a must-have. It’s saved me time, effort, and frustration on multiple occasions, and I can’t recommend it enough!
Teeth Grinder
Reviewed in the United States on February 22, 2025
I can't believe I went so long without this Thread Checker! This tool is an absolute game-changer when it comes to identifying bolt and nut sizes quickly and accurately. The 28-thread checker includes both 14 metric and 14 standard sizes, making it incredibly versatile for any project.What I love most is the clear labeling and easy-to-read scales in both centimeters and inches on both sides. No more guessing or running back and forth to the hardware store! The premium build quality ensures durability, and the compact design makes it easy to store in my toolbox.
Anastasia Cappleman
Reviewed in the United States on February 2, 2025
After becoming a single, I realized that I have to have all the things that I need in my toolbox. I got rid of a lot of stuff, but got this, because I always have trouble finding a matching wrench. Luckily this thing is flat and fits in any drawer. It is pretty simple to use and uses metric and American scale to determine sizes. It is pretty standard and compares to that of from Lowe’s. Good quality and I love the red color!
Carlos
Reviewed in the United States on February 2, 2025
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Disrupt2
Reviewed in the United States on February 17, 2025
This thing is well built — nice rubber pads if you want to lay it down or holes to hang. Threads are accurate with several bolts I’ve checked. Since it’s slightly elevated, it’s easy to check the thread with any bolt or screw without needing to lift it which is a downside of some other ones. Overall great functionality and value.
Anthony Hughes
Reviewed in the United States on February 13, 2025
I recently purchased the Thread Checker, and I couldn't be happier with my decision! This product is a game-changer for anyone who works with nuts and bolts, whether you’re a seasoned professional or a hobbyist DIYer like me.First off, the comprehensive range of 44 sizes—22 standard and 22 metric—is impressive. I found it incredibly easy to identify the right thread size for various projects around the house. The clarity of the markings makes reading the gauge a breeze, even in low light.The wall-mountable design is another fantastic feature! I hung it in my workshop, and it has saved me so much time. No more rummaging through drawers looking for the right nut or bolt; I can quickly grab the gauge, check the size, and be on my way.Additionally, the built-in ruler in both inches and centimeters is a thoughtful touch, making sure you're prepared for any task without needing extra tools on hand. The build quality is solid and durable; it feels like this tool will last me through many projects to come.
Smitty
Reviewed in the United States on January 9, 2025
This board measures 28 sizes of nuts and bolts- both metric and standard. The board is quality! Made of substantial aluminum, can be hung on the wall or used with rubber feet on a table. There are easy to read laser-engraved measurements. This will save time and money when purchasing items for a project. I hope it helps sort the stray nuts and bolts in the garage, too!
Phur
Reviewed in the United States on January 7, 2025
I was hesitating for a while regarding purchasing this product. Why did I wait? If you were like me, and are a DIY'er, this is a must have. I have tons of loose nuts and bolts in my garage toolbox. I'm always running into a project where I can't find the right nut or bolt. This is perfect to have. It's a great value, and has awesome utility! It is extremely accurate and helps me see a lot of time when I'm trying to find a few different nuts or bolts. I'm really impressed with how much time it saves me. I have it mounted right next to my toolbox and it looks great. It is extremely well made and appears to be made of solid stainless steel.
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