20 Best Bolt And Nut Gauge [2023]

Are you looking for the best bolt and nut gauge? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling bolt and nut gauge.

We Recommended:

# Preview Product
1 Stainlesstown Nut Bolt Thread Gauge (Red) Stainlesstown Nut Bolt Thread Gauge (Red)
2 SST Identibolt Bolt and Nut Identifier Gauge SST Identibolt Bolt and Nut Identifier Gauge
3 SAE and Metric Bolt Gauges Check a Thread Nut Fastener Size. SAE and Metric Bolt Gauges Check a Thread Nut Fastener Size.
4 Nut & Bolt Thread Checker (Wall Mounted) White Nut & Bolt Thread Checker (Wall Mounted) White
5 Nut & Bolt Thread Checker (Complete SAE/Inch and Metric Set) - 26 Male/Female Gauges - 14 Inch & 12... Nut & Bolt Thread Checker (Complete SAE/Inch and Metric Set) - 26 Male/Female Gauges - 14 Inch &...
6 Giwaelro Nut and Bolt Thread Checker - 26 PCS Screw Size and Bolt Size Thread Gauges - 14 Inch & 12... Giwaelro Nut and Bolt Thread Checker - 26 PCS Screw Size and Bolt Size Thread Gauges - 14 Inch &...
7 Marine Bolt Supply Nut, Bolt & Screw Gauge Standard & Metric Coarse & Fine Diameter, Length & Thread... Marine Bolt Supply Nut, Bolt & Screw Gauge Standard & Metric Coarse & Fine Diameter, Length &...
8 1 TU58 Thread Measuring Gauge, Vertical Bolt and Nut Gauge / Thread Checker (Inch & Metric) 1 TU58 Thread Measuring Gauge, Vertical Bolt and Nut Gauge / Thread Checker (Inch & Metric)
9 Nut and Bolt Thread Checker (Inch & Metric) - 26 Male/Female Thread Identifier Gauges - 14 Inch & 12... Nut and Bolt Thread Checker (Inch & Metric) - 26 Male/Female Thread Identifier Gauges - 14 Inch &...
10 [Patent] Nut & Bolt Thread Checker (Inch & Metric), 14 Inch & 12 Metric Nut and Bolt Thread Gauge... [Patent] Nut & Bolt Thread Checker (Inch & Metric), 14 Inch & 12 Metric Nut and Bolt Thread Gauge...
11 Tradespro Nut and Bolt Head Sizer, Gauge 5/16' – 1' and 8mm – 25mm - 837999 Tradespro Nut and Bolt Head Sizer, Gauge 5/16" – 1" and 8mm – 25mm - 837999
12 tenluno Thread Checker Nut & Bolt SWTC-44 Bundle Thread Checker Nut and Bolt Checker 44 MaleFemale... tenluno Thread Checker Nut & Bolt SWTC-44 Bundle Thread Checker Nut and Bolt Checker 44...
13 Nut & Bolt Thread Checker - 26 Male/Female Gauges - 14 Inch & 12 Metric for Quickly Checking Nuts... Nut & Bolt Thread Checker - 26 Male/Female Gauges - 14 Inch & 12 Metric for Quickly Checking Nuts...
14 TRUPER REGLA-22 Bolt Size-it Gauge TRUPER REGLA-22 Bolt Size-it Gauge
15 Screw Bolt Nut Thread Measure Gauge Size Checker (Inch Standard & Metric) Screw Bolt Nut Thread Measure Gauge Size Checker (Inch Standard & Metric)
16 CKE Nut & Bolt Thread Checker (Inch & Metric) - 26 Male/Female Gauges - 14 Inch & 12 Metric CKE Nut & Bolt Thread Checker (Inch & Metric) - 26 Male/Female Gauges - 14 Inch & 12 Metric
17 SAE and Metric Bolt Gauges Check-a-Thread Nut Fastener Size Tool SAE and Metric Bolt Gauges Check-a-Thread Nut Fastener Size Tool
18 Blue SAE and Metric Bolt Gauge Check a Thread Fastener Tool Blue SAE and Metric Bolt Gauge Check a Thread Fastener Tool
19 Black SAE and Metric Bolt Gauge Check a Thread Fastener Tool Black SAE and Metric Bolt Gauge Check a Thread Fastener Tool
20 Nut and Bolt Thread Checker (Inch & Metric) -26 Male/Female Thread Identifier Gauges - 14 Inch & 12... Nut and Bolt Thread Checker (Inch & Metric) -26 Male/Female Thread Identifier Gauges - 14 Inch &...
SaleBestseller No. 1
Stainlesstown Nut Bolt Thread Gauge (Red)
  • Measures diameter, thread pitch & length of nuts, bolts & screws
  • Measures fractional bolts from size #4 to 1" up to 7" long
  • Measures metric bolts & screws from size 3mm to 22mm
  • Made of very durable 1/4" thick hard plastic
  • 1/4" thick x 8-3/4" Long x 3-3/8 Wide Color: Red
Bestseller No. 2
SST Identibolt Bolt and Nut Identifier Gauge
  • "QUICKLY IDENTIFY BOLTS AND NUTS - The SST Identibolt is your One-stop Shop for Verifying the Size and Thread Pitch of All Your Standard Hardware!...
  • ULTIMATE NUT AND BOLT IDENTIFICATION TOOL - The Identibolt Measures Common Imperial SAE and Metric Thread Sizes, Identifying Hardware from #6 to ½" &...
  • DURABLE AND BUILT TO LAST - SST's 4"x20" Solid Metal Plate Construction is Hard Anodized for Maximum Thread Strength, With Laser Etched Markings that...
  • TWIN RULERS - Inch and Centimeter Rulers on the Bolt Identifier's Edge Help to Quickly Identify the Length of Your Bolt, Screw, Nut, Washer, or Will...
  • UNMATCHED WARRANTY - Masterfully Machined from 6061 Aluminum with a Beautiful Hard Anodized Finish and Backed by 5 Year SST Warranty, We Stand Behind...
SaleBestseller No. 3
SAE and Metric Bolt Gauges Check a Thread Nut Fastener Size.
  • Save a trip to the hardware store.
  • Heavy duty USA mold keeps bolts and nuts in place.
  • A must have for anyone who uses fasteners.
  • Quickly check thread sizes.
SaleBestseller No. 4
Nut & Bolt Thread Checker (Wall Mounted) White
  • The thread checker is an accurate and easy-to-use thread verifier for both nuts and bolts
  • Conveniently assembled onto a wire loop, it is especially well suited for distinguishing between similar inch and metric Threads
  • Each size has a nut and bolt checker on the same gauge
  • Bolt and nut thread checker, bolt length and screw size checker in both metric and standard sizes
  • Pre-drilled for easy mounting (top and bottom)
Bestseller No. 5
Nut & Bolt Thread Checker (Complete SAE/Inch and Metric Set) - 26 Male/Female Gauges - 14 Inch & 12...
  • 🔦Efficiency Improving - The new upgrade!No more bent over the container looking for a nut/bolt to finish your project. Identifying the size and...
  • 🔦Feature - The new upgrade!The Inch & Metric Thread Checker is an accurate and easy-to-use thread identifier for both nuts and bolts.Each...
  • 🔦PRODUCT - These thread gauges includes 26 male/female gauges - 14 inch & 12 metric Thread sizes are permanently carved on each gauge with distinct...
  • 🔦Zinc Plated for Inch Size - Includes 14 Inch Size part numbers: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24,...
  • 🔦Black Oxide for Metric Size - Includes 12 Metric Sizes part numbers: M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5,...
Bestseller No. 6
Giwaelro Nut and Bolt Thread Checker - 26 PCS Screw Size and Bolt Size Thread Gauges - 14 Inch & 12...
  • 🔩【NUT & BOLT THREAD CHECKER】Each Giwaelro thread checker has 26 pcs thread gauges (14 pcs for inch size and 12 pcs for metric size). Every...
  • 🔩【14 PCS INCH SIZE】 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20 (Numbers are...
  • 🔩【12 PCS METRIC SIZE】M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0, M8-1.25, M10-1.0, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75. (Numbers are...
  • 🔩【QUICK IDENTIFICATION AND TIME SAVER】Just screw the nut or bolt onto thread gauge. Only take seconds to check the size. With Giwaelro thread...
  • 🔩【STEEL HANGING CABLE】All the thread gauges, standard and metric, are strung and protected on a stainless wire from misplace and loss. With two...
Bestseller No. 7
Marine Bolt Supply Nut, Bolt & Screw Gauge Standard & Metric Coarse & Fine Diameter, Length & Thread...
  • Top Quality Nut, Bolt & Screw Gauge; For Use With Standard or Metric, Coarse & Fine Diameters, Lengths & Thread Pitches
  • This gauge has 'MarineBoltSupply' printed on the back
  • Package Dimensions: 8.75 inch L x 3.25 inch W x 0.25 inch H
  • Package weight of the Product: 2.43 ounces
Bestseller No. 8
1 TU58 Thread Measuring Gauge, Vertical Bolt and Nut Gauge / Thread Checker (Inch & Metric)
  • Screw Sizes (smooth bore holes) - #0, 1, 2, 3, 4, 6, 8, 10, 12, and #14
  • UNC Threads - 6-32, 8-32, 10-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, and 1/2-13
  • UNF Threads - 10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, and 1/2-20
  • Metric Threads (Standard, Fine, and Extra Fine) - M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, and...
  • Fractions - 0 to 6" graduated in 1/16'ths of an inch. Metric - 0 to 15 Centimeters graduated in millimeters
SaleBestseller No. 9
Nut and Bolt Thread Checker (Inch & Metric) - 26 Male/Female Thread Identifier Gauges - 14 Inch & 12...
  • Nice Bundle: These thread gauges includes 26 male/female gauges - 14 inch & 12 metric. Each size has a nut and bolt checker on the same gauge. The...
  • Efficiency Improving: No more bent over the container looking for a nut/bolt to finish your project. Identifying the size and thread of nuts and bolts...
  • Handy Tool Which You Should Have One: Excellent item for the mechanic; Applicable to mechanical repairs, or common threads in plumbing, air and gas...
  • Convenient hanging: The wire cable of this thread identifier with loop for hanging it on the wall in your workshop or garage beside your toolbox.
  • Quality Process and Material: These nut & bolt thread checkers are made of strong stainless steel. Inch gauges are clear zinc plated, metric gauges...
Bestseller No. 10
[Patent] Nut & Bolt Thread Checker (Inch & Metric), 14 Inch & 12 Metric Nut and Bolt Thread Gauge...
  • 【Upgraded Bundle】This nut and bolt thread checker set includes 26 individual thread gauges - 14 inch size & 12 metric size. All gauges is inserted...
  • 【More Flexibility】Just take a single gauge from the case to check the screw size simply. Easily to reach confined areas as you wish. No more...
  • 【Easy to Read】Strong laser printed label on each individual bolt nut gauge. There are also one-to-one labels on EVA holder and sticker of case for...
  • 【Efficiency Improving】Super Time Saver. 26 common sizes will fully satisfy you in daily mechanical work or home project. No more endless tries,...
  • 【Buy With Confidence】This nut and bolt checker set are made of premium steel which ensures Strong Abrasion Resistance. Inch gauges are clear zinc...
SaleBestseller No. 11
Tradespro Nut and Bolt Head Sizer, Gauge 5/16" – 1" and 8mm – 25mm - 837999
  • Gauge SAE: 5/16 in. – 1 in. and Metric: 8mm – 25mm
  • Convenient to carry in a pocket or clipped on a keychain
  • Ensures the right size is easily located
  • Great tool for saving time when removing or installing a fastener
  • Both SAE (Inch) and metric gradations on opposite sides
Bestseller No. 12
tenluno Thread Checker Nut & Bolt SWTC-44 Bundle Thread Checker Nut and Bolt Checker 44 MaleFemale...
  • 21 Metric Sizes part number : M3x0.5, M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, M12x1.75,...
  • 23 Inch Sizes part number : 6-32, 6-40, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20,...
  • Each included size has a nut and bolt checker on the same gauge.
  • The size of the thread is engraved on it with a laser, and it is stored forever.
  • Easy to Easy to carry, easy to measure, a good toolcarry, easy to measure, a good tool
Bestseller No. 13
Nut & Bolt Thread Checker - 26 Male/Female Gauges - 14 Inch & 12 Metric for Quickly Checking Nuts...
  • 【Nut & Bolt Thread Checker】 These thread gauges includes 26 male/female gauges - 14 inch & 12 metric.Thread sizes are permanently carved on each...
  • 【Efficiency Improving】Big Time Saver No more bent over the container looking for a nut/bolt to finish your project,especially the nut or bolt...
  • 【High Quality Material】 These nut & bolt thread checkers are made of strong material. Inch gauges are clear zinc plated, metric gauges are black...
  • 【Black Oxide for Metric Size】Includes 12 Metric Sizes part numbers: M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5,...
  • 【Zinc Plated for Inch Size】 Includes 14 Inch Size part numbers: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24,...
Bestseller No. 15
Screw Bolt Nut Thread Measure Gauge Size Checker (Inch Standard & Metric)
  • Inch and Metric & Coarse and Fine Threading
  • Measures fractional bolts from size #4 to 1" up to 7" long
  • Measures metric bolts & screws from size 3mm to 22mm
  • Made of durable 1/4" thick hard plastic
  • 1/4" thick x 8-3/4" Long x 3-3/8 Wide Color: Red
SaleBestseller No. 16
CKE Nut & Bolt Thread Checker (Inch & Metric) - 26 Male/Female Gauges - 14 Inch & 12 Metric
  • 🔦Feature - 【Upgraded Double-sided Printing Size】The Inch & Metric Thread Checker is an accurate and easy-to-use thread identifier for both nuts...
  • 🔦Nut & Bolt Thread Checker - Each size has a nut and bolt checker on the same gauge 26 male/female gauges - 14 inch & 12 metric.
  • 🔦Zinc Plated for Inch Size - Includes 14 Inch Size part numbers: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24,...
  • 🔦Black Oxide for Metric Size - Includes 12 Metric Sizes part numbers: M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5,...
  • 🔦Fast Size Finder - Thread sizes are permanently stamped onto each gauge. The individual gauges rotate freely on the wire cable for fast thread...
Bestseller No. 17
SAE and Metric Bolt Gauges Check-a-Thread Nut Fastener Size Tool
  • Made of a durable plastic resin in a convenient 24" wide tool.
  • All the popular thread sizes including course and fine threads.
  • Hi contrast lettering so you can quickly and easily find your thread. Red tool for metric and blue tool for standard SAE.
  • Dimensions: 24" Wide x 5-5/8" Tall x 4-1/4" Deep
Bestseller No. 18
Blue SAE and Metric Bolt Gauge Check a Thread Fastener Tool
  • Made of aluminum in a convenient vertical sized tool.
  • All the popular thread sizes including course and fine threads.
  • Hi contrast lettering so you can quickly and easily find your thread.
  • Dimensions: 37" Height x 3.25" Wide x 1" Deep
Bestseller No. 19
Black SAE and Metric Bolt Gauge Check a Thread Fastener Tool
  • Made of durable zinc plated steel in a convenient 22" wide tool.
  • Hi contrast lettering so you can quickly and easily find your thread.
  • All the popular thread sizes including course and fine threads.
Bestseller No. 20
Nut and Bolt Thread Checker (Inch & Metric) -26 Male/Female Thread Identifier Gauges - 14 Inch & 12...
  • Nut and bolt thread checker: These bolt thread gauge includes 26 male/female gauges - 14 inch & 12 metric. Each size has a nut and bolt checker on the...
  • Clear zinc plated are inch gauges: Includes 14 Inch size part numbers: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24,...
  • Black oxide are metric gauges: Includes 12 metric sizes part numbers: M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5,...
  • High-quality materials: These thread checker standard and metric are made of High quality stainless steel.Inch gauges are clear zinc plated, metric...
  • Convenient and practical: The wire cable of this thread identifier with loop for hanging it on the wall in your workshop or garage beside your...

Having trouble finding a great bolt and nut gauge?

This problem is well understood by us because we have gone through the entire bolt and nut gauge research process ourselves, which is why we have put together a comprehensive list of the best bolt and nut gauges available in the market today.

After hours of searching and using all the models on the market, we have found the best bolt and nut gauge for 2023. See our ranking below!

How Do You Buy The Best Bolt And Nut Gauge?

Do you get stressed out thinking about shopping for a great bolt and nut gauge? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching bolt and nut gauge, which is why we have assembled a comprehensive list of the greatest bolt and nut gauge available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for bolt and nut gauge that you consider buying. Your questions might include the following:

  • Is it worth buying an bolt and nut gauge?
  • What benefits are there with buying an bolt and nut gauge?
  • What factors deserve consideration when shopping for an effective bolt and nut gauge?
  • Why is it crucial to invest in any bolt and nut gauge, much less the best one?
  • Which bolt and nut gauge are good in the current market?
  • Where can you find information like this about bolt and nut gauge?

We’re convinced that you likely have far more questions than just these regarding bolt and nut gauge, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for bolt and nut gauge, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible bolt and nut gauge. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an bolt and nut gauge buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available bolt and nut gauge currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of bolt and nut gauge has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an bolt and nut gauge?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your bolt and nut gauge.
  5. Customer Ratings: Number ratings grade bolt and nut gauge objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their bolt and nut gauge.
  7. Product Quality: You don’t always get what you pay for with an bolt and nut gauge, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an bolt and nut gauge is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining bolt and nut gauge information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding bolt and nut gauge is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: How do you measure a bolt?

A: Measure the length of a bolt from the underside of the bolt head to the end of the shank, and to measure diameter, measure the widest part of the shank of the bolt. Length and diameter can be measured in millimeters or inches, and they are the two principal dimensions of a bolt.

Q: What size are metric bolts?

A: Metric Bolts. Metric bolts are sized according to diameter, distance or spacing (in millimeters) between threads and length. For example a size of 12×1.75×30 translates to a bolt that is 12mm in diameter, has a distance of 1.75 between the threads and is 30mm long.

Q: What is thread plug gage?

A: Thread plug gages are used to check an internal threaded hole. The most common thread plug classifications are: -2B which is a general purpose class of fit. -3B which is used to check parts with’ ‘closer” tolerance requirements.

Q: What are nut sizes?

A: Thick nut size refers to its nominal thread diameter. Typically, sizes range from about 1/4″ to 1 1/2″. Size is specified in inches, usually fractional rather than decimal. Not all types are available in all sizes. Nut width and thickness vary with the size of the thick nut.