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A red gauge for identifying bolt and nut threads with various standard sizes is shown next to a hand and loose hardware.
A red bolt and nut gauge with numbered threads is shown next to a plastic container of various bolts and nuts.
A red plastic gauge showing various bolt and nut thread sizes for identification.
A red universal bolt and nut thread identifier gauge with various standard sizes is shown being used to measure threads.
A hand is using a red bolt and nut thread identifier gauge to measure various standard sizes of bolts and nuts.
Red aluminum alloy bolt and nut size checker with 28 standard metric sizes
A red bolt and nut gauge with numbered threads is shown next to a plastic container of various bolts and nuts.
A hand is using a red bolt and nut thread identifier gauge to measure various standard sizes of bolts and nuts.
Red aluminum alloy bolt and nut size checker with 28 standard metric sizes
A red plastic gauge showing various bolt and nut thread sizes for identification.
A red universal bolt and nut thread identifier gauge with 28 standard sizes for measuring threads.
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Universal Bolt & Nut Thread Identifier Gauge with 28 Standard Sizes

Regular price €90,99 Sale price €83,99

Stop guessing fastener sizes with this compact thread identifier gauge that covers 28 standard metric and imperial sizes. It's built for quick, accurate identification of bolts, nuts, and screws in any workshop...

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Why customers love it

Stop Guessing Fastener Sizes Forever

This compact thread identifier gauge covers 28 standard metric and imperial sizes, making quick, accurate identification of bolts, nuts, and screws effortless in any workshop or job site.

  • Covers 28 standard metric and imperial sizes
  • Dual-sided design for metric and imperial threads, including coarse and fine pitches
  • Built-in aperture holes verify outer diameters of nuts and bolts
  • Durable aluminum alloy with anodized red finish resists rust and wear
  • Laser-engraved markings stay sharp and legible
  • Compact flat profile fits in a toolbox or pocket
A red gauge for identifying bolt and nut threads with various standard sizes is shown next to a hand and loose hardware.

Why You'll Love This Thread Identifier

Universal Thread Coverage

Dual-sided design covers metric (M4–M14) and imperial (6-32 to 1/2-20) threads, including coarse and fine pitches.

Double-Checked Accuracy

Built-in aperture holes verify outer diameters of nuts and bolts for double-checked accuracy.

Built to Last

Durable aluminum alloy construction with an anodized red finish resists rust and wear.

Clear, Lasting Markings

Laser-engraved markings stay sharp and legible even after heavy use.

Specs

The details that matter

Size
28 standard sizes
Thread types
Metric (M4–M14) and imperial (6-32 to 1/2-20), coarse and fine
Material
Aluminum alloy with anodized red finish
Markings
Laser-engraved
Mounting
Pre-drilled holes

More details

Stop guessing fastener sizes with this compact thread identifier gauge that covers 28 standard metric and imperial sizes. It's built for quick, accurate identification of bolts, nuts, and screws in any workshop or job site.

  • Dual-sided design covers metric (M4–M14) and imperial (6-32 to 1/2-20) threads, including coarse and fine pitches.
  • Built-in aperture holes verify outer diameters of nuts and bolts for double-checked accuracy.
  • Durable aluminum alloy construction with an anodized red finish resists rust and wear.
  • Laser-engraved markings stay sharp and legible even after heavy use.
  • Pre-drilled mounting holes allow convenient wall or workbench installation.
  • Compact flat profile easily slips into a toolbox or pocket for on-the-go identification.

Ideal for automotive repairs, machinery maintenance, woodworking, and home DIY projects.

Frequently asked questions

Everything you might want to know before you order.

How many fastener sizes does this thread identifier cover?

This gauge covers 28 standard metric and imperial sizes, including metric M4–M14 and imperial 6-32 to 1/2-20 threads.

Does it work with both metric and imperial fasteners?

The dual-sided design covers both metric (M4–M14) and imperial (6-32 to 1/2-20) threads, including coarse and fine pitches.

Can I verify the outer diameter of nuts and bolts with this tool?

Yes, the built-in aperture holes allow you to verify the outer diameters of nuts and bolts for double-checked accuracy.

What material is the thread identifier made from?

The gauge is made from durable aluminum alloy with an anodized red finish, which resists rust and wear.

Can I mount this gauge on a wall or workbench?

Yes, the pre-drilled mounting holes allow convenient wall or workbench installation, and its compact flat profile makes it easy to carry in a toolbox or pocket.

How do delivery and returns work?

Shipping

Free standard shipping

To Germany: 1–3 business days processing, then 5–12 business days in transit. Estimates, not guaranteed dates.

Your dispatch email includes a tracking link. Contact us if it has not arrived within 5 business days of ordering.

Outside the EU, import duties and local taxes may be payable on delivery. See the shipping policy for supported destinations and conditions.

Returns

Request a return within 14 days of delivery. Standard eligible returns must meet the policy conditions; a €4 prepaid-label fee is deducted from the refund. Return shipping is free for faulty, damaged or incorrect items. Contact us promptly if something is wrong. Your mandatory consumer rights are unaffected.

Shipping policy · Return & refund policy

Have a question? Contact us

Product reviews · Judge.me

Read it from other buyers

Product reviews displayed by Judge.me, including reviews imported from other providers. Imported reviews may describe purchases from other stores.

  • 5 stars: 14 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Rocky Kulas

Beautiful

W
Wilson Wilkinson

Corresponds to the description
Good quality nothing bolt thread checker
Great instrument to identify thread and bolts
Fast delivery 🚚
Thanks

B
Byron Quitzon

Looks solid.

E
Elise Mante

Great product

C
Cynthia Beier

This is great i can find any bolts thread that i need now. i'm very pleased with the product ☺️

T
Tony Roob

It arrived quickly.
The quality is good and I recommend it.

A
Adan Schimmel

Everything looks correct thanks

E
Eddie Runolfsdottir

Super good quality and worth the money big plate 20cm square

P
Parthenia Spinka

Optics: 1, Functionality: 1, Workmanship: 1. Top!

M
Millicent Gottlieb

Very good!! Excellent quality

J
Jerry Becker

everything perfect!!!!! product just as described

H
Hayden Price

Excellent item

L
Lynnette Willms

Ware ok

N
Noah Halvorson

º © © º °¨ Great seller¨ ° º © © º ° Simply perfect thankyou ° º © © ºas described - recommend - a1