Search  for anything...
Thread Checker

SWTC-26 Nut & Bolt, Inch & Metric, Original Version

    • Based on 3,718 reviews
Condition: New
Checking for product changes
$29.82 Why this price?
Holiday Deal · 8% off was $32.35

Buy Now, Pay Later

As low as $7 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Dec 29
Order within 11 hours and 32 minutes
Available payment plans shown during checkout

Pattern Name: Checker


Features

  • Each Size Has A Nut And Bolt Checker On The Same Gauge. 26 Male/Female Gauges - 14 Inch & 12 Metric
  • Thread Sizes Are Permanently Stamped Onto Each Gauge (Inch In Red, Metric In White)
  • Inch Gauges Are Clear Zinc Plated, Metric Gauges Are Black Oxide
  • The Individual Gauges Rotate Freely On The Wire Cable For Fast Thread Verification

Description

Nut & Bolt Thread Checker (Inch & Metric), Original Version (SWTC-26)

Material: Stainless Steel


Fastener Type: Bolt and Screws


Thread Size: Many


Exterior Finish: Zinc


Color: Original version


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 6 x 4 x 1 inches; 5 ounces


Item model number ‏ : ‎ SWTC-26


Date First Available ‏ : ‎ April 5, 2010


Manufacturer ‏ : ‎ Thread Checker


Best Sellers Rank: #19,101 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #48 in Nut & Bolt Assortment Sets


#48 in Nut & Bolt Assortment Sets:


Customer Reviews: 4.8 4.8 out of 5 stars 3,718 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Dec 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Very handy thread checking system
Pattern Name: Checker
Nice design for having a compact, cable-mounted system for checking both male and female, as well as SAE and metric threads. I have it hanging off the side of my tool chest, so it is very handy and very utilitarian. Recommended.
Reviewed in the United States on April 14, 2024 by User3712
    • Thread gauges
Pattern Name: Checker
Work great and very helpful
Reviewed in the United States on May 16, 2024 by Edward J Sheehy
    • great
Pattern Name: Checker
love this tool no more hassles for me ty
Reviewed in the United States on May 15, 2024 by Danny Whitney
    • It's good.
Pattern Name: Checker
A long time ago I went to a website that sells hardware and ordered one of every size but and bolt they had. But it was only 19 sizes. This has 26. Anyways I tested them all and they were all smooth both inside and out. Pretty nice. Also, the sizes are indeed stamped in and filled in with paint. They'll never wear off. If you dropped them in acetone or something and the paint dissolved you could rub more paint over it and wipe away the excess with a rag and isopropyl alcohol. It's true, trying to thread one into a hole really sucks because they're all on a steel cable. The cable isn't the most flexible thing and the weight makes it worse. You can't feel what you're doing like that. I tried putting them on a string and that did help a lot because you could isolate one and let the string wrap around the bolt as you turn it. But not good enough for me. I knew when I bought these that I wanted to make a case for them and I did. I won't go into the details but if you're handy that's the way to go. Best part, I had 7 sizes from my first set that this set didn't have. 3 sizes smaller in both inch and metric, and one other inch 12-24. So now I have the ultimate bolt collection. I used thick foam in my case, drilled holes surprisingly easy and they all fit nice and snug. But you could also use magnets. 30 bucks is a lot of money, but I think it might actually be more to buy all this hardware individually at home depot or lowes. And to have the male and female on one piece with the size stamped in, yeah I think it's worth it. Very cool thank you. ... show more
Reviewed in the United States on April 12, 2021 by me
    • Good idea, pretty well executed. Price is high, but saves me time.
Pattern Name: Checker
This is a Good idea, and one I was planning to make for myself, by buying a single screw & bolt of every size, then adhering them to a board, so I could test at will, like in the hardware stores. That idea would work, but if you have a hole, & can't pick it up to screw it into the threads on your board, you're stuck. This is the same idea, but easier to take to the hole, rather than taking the whole piece to the board. Pros: * The Price is high (but the cheapest option I found for a similar item). * This saves me time - Lots of time! Instead of screwing endless unknown screws into unknown holes, I'm usually ID-ing the correct size hole within seconds. Then I can use the opposite end to find the right screw after just a few tries. * At the very least, I know if it's metric or SAE, so if I can't find a screw in my pile, I can buy the correct size immediately, and confidently. Cons: * The sizes are marked on each one, but barely. It's a white stamp, not embossed, so it will wear away soon, I'm sure. * These are incomplete, ie, not every size is on here, but the most common ones are. I haven't had an issue yet, but we'll see over time. If I do, I can just go buy a nut & bolt of that missing size, to compliment my current array for a lot less than buying the bigger, more complete options of this set. * The wire these are attached to is sturdy, & I needed some Bolt cutters to get it off. As others have mentioned, bringing a screw/bolt to the sample holes is super easy, & not an issue at all. But if you need to screw one of the screw ends into an unknown hole, this is not going to let you get more than about a half turn before you find yourself doing some crazy maneuvers to try to get that whole line to twist around repeatedly. Not convenient. Solution: * I cut mine off, & restrung them onto 4 much smaller lines: 1 small sized Line for SAE, & 1 small sized Line for Metric. Then I did the same for the 2 big ended lines. MUCH more convenient, & it's pretty unlikely you're going to grab the wrong line very often. (The jump in sizes is pretty obvious at about half way, on each type, so you're gonna see it with the naked eye). * I also used a much more flexible line, & with so few excess bits per line, it's wildly easier to screw into an unidentified hole, without the hassle. I can always restring them later, if the weaker line breaks. I did use the spacers for thread protection, & then placed all 4 of them in separate baggies, for further protection, since I primarily use the smaller ended parts. Overall, this is a good solution, with some issues. The price was enough lower than other options, that it makes the adjustments worth it to me, and the Time Savings is well worth the money spent, if you find yourself guessing on screw sizes very often - as I do. ... show more
Reviewed in the United States on September 24, 2019 by KM
    • Quality build, stellar customer service from manufacturer!
Pattern Name: Checker
Been wanting one of these for some time just for my home garage work. Chose this for the quality, good price and made in USA. That was last year. This week I went to check a nut and found that instead of 1/4-20 and 1/4-28 checkers I had two 1/4-28. No big deal I guess because it didn't fit the 28 thread one so I knew it was a 20-thread nut. But I reached out to the manufacturer anyway via email on a Thursday afternoon. Within 15 minutes I had emails from their sales team and president/CEO promising they'd send out a new one. Was stunned to find the new one on my doorstep Friday morning! It helps that I'm one state away, but wow ... what stellar service after the sale. Replacement unit is perfect and I can gift the "defect" to a family member. No reason to order anything else. ... show more
Reviewed in the United States on July 7, 2023 by TH_Paul
    • Easy to find correct bolt or nut
Pattern Name: Checker
This comes in handy to find the right bolt or nut, both European and American sizes. I've used it several times.
Reviewed in the United States on February 20, 2024 by John B.
    • These are nice. Well made
Pattern Name: Checker
These are well made. I use them for work. Very handy to have. They are both SAE and metric.
Reviewed in the United States on November 20, 2023 by Kevin N.

Can't find a product?

Find it on Amazon first, then paste the link below.