Best Amazon Deals — Updated Daily! 🛒

Track Order

To track your order please enter your Order ID in the box below and press the "Track" button. This was given to you on your receipt and in the confirmation email you should have received.

0
  • Garden
  • Home Improvement
  • Misc
  • Pantry
  • Tools
    • Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 2
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 3
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 4
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 5
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 6
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 7
    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge - Image 8

    Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge

    $18.99

    SKU: B0DS7Y4C5N Category: Tag:

    Description

    Price: $18.99
    (as of May 18, 2026 17:04:39 UTC – Details)



    To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.Learn more how customers reviews work on Amazon






    Customers say

    Customers find the thread checker to be a high-quality, solid aluminum tool that works well for measuring both standard and metric threads. They appreciate its portability, noting it's great for shop use, and like its convenient size that makes sizes easy to see. Customers consider it good value for money and like its appearance.

    AI Generated from the text of customer reviews

    Select to learn more

    41 customers mention accuracy, 40 positive, 1 negative

    Customers find the thread checker works great and is accurate, with one customer specifically noting its effectiveness for metric bolt pitch and size identification.

    …Works great and guys should have one of these in every shop and garage.Read more

    Good item to have and works well. Saves me trip to tractor supply.Read more

    works goodRead more

    This thread checker works great for me exactly what I was looking for and at a fair priceRead more

    37 customers mention quality, 37 positive, 0 negative

    Customers find the thread checker to be a high-quality tool that feels well made.

    Well made and very convenient. So far I'm very pleased with my thread checker. I only wish I had bought one years ago.Read more

    …Has metric and sae. Great tool. Heavy weight aluminum. Stop guessing, this thing is awesome.Read more

    …Good quality and vert accurate.Read more

    Come in handy every once in a while. Solid! Not much to it but when you need it, its nice to have.Read more

    20 customers mention portability, 20 positive, 0 negative

    Customers find the thread checker handy and great for the shop, with one mentioning it's particularly useful for determining bolt sizes.

    …Very handy.Read more

    …Has metric and standard. Also measures drill bits. Great tool for the shop. Cuts down guessing on sizes for nuts and polts.Read more

    …Not had time to test all of them. Easy to read sizes and the drill guides are nice to get the correct hole for the bolt with guessing or eyeballing…Read more

    This is a must in the shop or garage. It helps you identify the nut and bolt sizes so you can sort them quickly and accurately.Read more

    16 customers mention value for money, 15 positive, 1 negative

    Customers find the thread checker to be good value for money, noting that it looks solid for its price.

    it was a good buy,now I know the different types of screws and bolts.Read more

    …Compared to prices elsewhere I think it was a decent deal price wise.Read more

    …I feel this is a high quality tool and is a great value for the money….Read more

    …checker works great for me exactly what I was looking for and at a fair priceRead more

    15 customers mention size accuracy, 13 positive, 2 negative

    Customers appreciate the thread checker's size accuracy, noting that the measurements are easy to see and convenient to use. One customer mentions that it eliminates the need for guessing when working with nuts and bolts, while another points out that it includes both standard and metric measurements.

    Just what i needed in my work shop it is very well made and sizes easy see also it is metric and standard sizes.sorry i did not buy this a long time…Read more

    …I purchased his unit is the wide selection of thread pitches and fastener sizes. Other models at a comparable price could not compare….Read more

    …Convenient size for hanging on my toolbox without having to walk across the bay to use the one hanging on the wall….Read more

    …With this board, you instantly know the exact size and thread pitch you need….Read more

    14 customers mention sturdiness, 13 positive, 1 negative

    Customers find the thread checker to be very solid.

    …Well-made and sturdy. Should last until retirement.Read more

    …for occasional home use; it turned out to be heavy duty for regular business use. So, it was better than I expected.Read more

    This product was heavy duty and we'll made way more than I expected.. I'm really happy when order something and I feel I got my moneys worth……Read more

    Very well builtRead more

    9 customers mention material, 8 positive, 1 negative

    Customers appreciate the material of the thread checker, noting its solid aluminum construction and anodized finish.

    All metal. Very good quality product.Read more

    Smaller than I thought but still works and looks great. Very nice anodized aluminum easy to read the sizesRead more

    Solid aluminum, small size. Works fantasticRead more

    …I like the quality metal build, and attractive color of it. Its been pretty useful so far and the threads seem accurate.Read more

    7 customers mention appearance, 7 positive, 0 negative

    Customers like the appearance of the thread checker, with one noting it looks solid.

    Looks good, as advertised.Read more

    Almost wish I hadn't ordered the wrong thread checker. THIS is a beautiful tool….Read more

    Smaller than I thought but still works and looks great. Very nice anodized aluminum easy to read the sizesRead more

    …is 20×20 cm, the quality of the product is the one that I spect, it looks solid and prety and has a convenient size.Read more


    Quality and price on point!

    5 out of 5 stars

    Quality and price on point!
    This is a great size and build quality for the price is great I use this a lot and saves me time and money on nuts bolts that I have so I don’t have to go buy the ones I already have! It
    Hide

    Thank you for your feedback

    Sorry, there was an error

    Sorry we couldn't load the review






    Top reviews from the United States


    • Kathy White

      5.0 out of 5 stars

      Great for the shop

      Reviewed in the United States on April 12, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      Excellent quality and very strong. Has metric and standard. Also measures drill bits. Great tool for the shop. Cuts down guessing on sizes for nuts and polts.


      Helpful


      Report

    • Carlos

      5.0 out of 5 stars

      Stop screw'n around!

      Reviewed in the United States on November 30, 2025

      Color: RedSize: 55 Thread CheckerVerified Purchase

      I really like this tool, although I wish it came in different colors I don't like red. The reason I purchased his unit is the wide selection of thread pitches and fastener sizes. Other models at a comparable price could not compare. So far it has been perfectly accurate on thread size and pitch. It is very light weight as some of the options are hallow on the male threaded components. I feel this is a high quality tool and is a great value for the money. I highly recommend this tool if you need to identify fastener sizes and thread pitches.


      Helpful


      Report

    • Paul's Tool Review

      5.0 out of 5 stars

      Essential Thread Checker—Saves Time, Guesswork, and Extra Trips

      Reviewed in the United States on April 13, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      This thread checker is a huge time‑saver. No more guessing, no more buying multiple bolts “just to see what fits,” and no more back‑and‑forth trips to the hardware store. With this board, you instantly know the exact size and thread pitch you need.

      It’s also great for sorting old nuts and bolts you’ve collected over the years. The layout is clear, the threads are accurate, and having both standard and metric sizes in one place makes it even more useful. The built‑in drill bit gauge is a nice bonus, especially for matching pilot holes.

      If you work on cars, appliances, furniture, or just like keeping your hardware organized, this is one of those tools that pays for itself immediately.


      Helpful


      Report

    • Seedawg

      5.0 out of 5 stars

      Great tool for quick reference.

      Reviewed in the United States on March 17, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      Used a few times to find the right sized bolt and thread pitch for the bolt I am working with. Convenient size for hanging on my toolbox without having to walk across the bay to use the one hanging on the wall. I tested quite a few known metric and SAE bolts and nut to check the accuracy when I bought it; they were dead on. Well-made and sturdy. Should last until retirement.


      Helpful


      Report

    • T. C. LEAR

      5.0 out of 5 stars

      Thread Checker, 55 Bolt Size and Thread Gauge,

      Reviewed in the United States on April 1, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      Great to have in the garage. Now I don't have to guess when looking for nuts & bolts anymore. Well made.


      Helpful


      Report

    • Spoon

      4.0 out of 5 stars

      My nuts, and bolts are happy.

      Reviewed in the United States on September 10, 2025

      Color: RedSize: 55 Thread CheckerVerified Purchase

      I like this little device. Its a little hard to read sometimes, though. For some reason I cant always find the size Im looking for, but eventually I do.

      I like the quality metal build, and attractive color of it. Its been pretty useful so far and the threads seem accurate.

      2 people found this helpful

      Helpful


      Report

    • SJ

      5.0 out of 5 stars

      Fantastic! Something I should've bought years ago!

      Reviewed in the United States on April 25, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      Absolutely fantastic and high quality made. I believe it's an aluminum base. I should have bought this years ago. I'll be buying another one soon so I can have one out in my garage and the other in my house. This is a must have if you work on vehicles, no question about it.


      Helpful


      Report

    • Chris Steward

      5.0 out of 5 stars

      A must have Tool!

      Reviewed in the United States on April 28, 2026

      Color: RedSize: 55 Thread CheckerVerified Purchase

      Being able to check threads is an absolute necessity if you are doing professional work. This thread checker seems to be machined perfectly and accurately. Definitely recommend it to anyone doing professional work!


      Helpful


      Report

    Product Summary: Thread Checker, 55 Bolt Size and Thread Gauge, Bolt Thread Identifier 20 Standard & 16 Metric, Bolt Identifier Board, Nut and Bolt Thread Checker Gauge Wall-Mountable with 19 Drill Bit Gauge

    From XINRINTONG
    36 Nut and Bolt Sizer – Our bolt thread identifier instantly recognizes 34 different sizes, including 16 metric thread sizes (From M3 x 0.5 to M16 x 2.0) and 20 imperial threads (From #6 – 32 Coarse to 3/4 – 16 Fine) Make sure your bolt sizing tool is compatible with all standard hardware!
    Masterful Craftsmanship Thread Checker – Our nut and bolt thread checkers are carefully made using CNC machining. Ensure accurate internal and external thread sizes. Quickly identify the classification of bolts and nuts. Note: Not suitable for irregular nut.
    Multi-Functional Design – 1: The bolt sizer has 6 pre-set mounting holes for easy mounting on a wall or tool box; 2: The nut bolt gauge is designed with scales on both sides, 15 cm and 6 inches (Laser Etching); 3: Four non-slip feet (Removable).
    Upgraded Design – Our bolt identifier board features 19 different size drill gauges. It has 6 metric (4mm – 14mm) and 13 imperial (1/16“ – 1/2”) gauges helping you measure drill bits quickly and easily.
    Widely Used Tool – This bolt and nut gauge is an indispensable tool for professionals and DIY enthusiasts. Its one-piece design ensures that all parts remain safe and organized on the tool, eliminating the worry of parts being misplaced or tangled. Whether you are an auto mechanic, carpenter, welder, plumber or workshop technician, this comprehensive set of bolt size and thread gauges will be your most reliable partner.

    Related products

    TOP