What kind of photo gives the best results?

Shoot straight-on with even lighting and place a ruler next to the fastener in the same plane. This gives the AI a reliable scale reference for precise measurements.

Can I identify multiple fasteners at once?

Yes — Pro users can scan a group of fasteners in one photo. The app groups results with individual counts and specs so you can build parts lists fast.

Does it work without internet?

You can capture photos offline and they'll queue for analysis. Identification runs when you have a connection, usually under five seconds.

How accurate is the thread pitch measurement?

With a clear ruler reference and straight-on photo, accuracy is within ±0.05 mm for metric pitch and ±1 TPI for imperial — sufficient for confident ordering.

Does it handle both metric and imperial?

Absolutely. The app detects both standards and flags when a fastener is close to sizes in either system, so you always pick the right match for your hardware.

Yes. Single fastener identification, thread pitch, and basic history are free forever. Pro adds batch scans, full exports, and advanced search for $3.99/month.

Stop guessing screws. Start knowing.

Snap a photo, get exact thread pitch, size, and specs. No calipers, no guessing, no wasted trips to the hardware store.

Download free — no sign-up

4.8★ App Store rating

10,000+ fasteners identified

Trusted by field techs & makers

Field technician confidently holding a phone showing fastener specs on a job site

Photo-to-specs in under 5s4.8 App Store rating10,000+ fasteners identifiedMetric + Imperial

Sound familiar?

Mystery screws cost you time and money

You pull an unknown fastener from a machine, drive to the hardware store, hold it up to a gauge wall, and hope for the best. Wrong part? Drive back. Wrong thread pitch? Strip the hole. It adds up fast.

30 min

Average time wasted per unknown fastener

1 in 4

Hardware store trips return with the wrong part

$$$

Stripped holes and rework from near-miss replacements

Why Screw Identifier

The faster way to identify any fastener

One photo replaces a drawer full of gauges. Get size, thread pitch, and full specs you can trust — on the spot.

Instant Photo ID

Snap one photo, get exact specs.

Point your camera at any screw, bolt, or nut and receive thread pitch, diameter, and full specs in seconds.

Batch Scan

Identify multiple fasteners at once.

Scan a set of fasteners in one shot — get grouped results with counts for faster inventory and ordering.

Metric ↔ Imperial, Sorted

Never mix up standards again.

Built-in guidance confirms the correct standard so you avoid mismatched parts and wasted trips.

Export-Ready Reports

Share specs with your team in one tap.

Save every identification and export clean reports for purchasing, maintenance, or job documentation.

AI-Powered Accuracy

Trained on thousands of fastener types.

Advanced recognition handles worn threads, coated surfaces, and unusual heads that trip up manual gauges.

How it works

Three steps. Zero guesswork.

Capture a photo with a ruler reference and get accurate specs in seconds — not minutes.

1. 1. Snap a photo

Point your camera at the fastener with a ruler beside it. Good light and a straight angle give the best results.

Capturing a fastener photo with a phone camera

2. 2. AI does the rest

The app detects the fastener, reads the ruler scale, and calculates thread pitch, diameter, and type automatically.

AI analyzing fastener dimensions from photo

3. 3. Get exact specs

Review size, standard, and compatibility — then save or export a clean report for your team.

Viewing accurate fastener specs on phone screen

From the field

Less rework. Faster orders.

Real techs and makers who stopped guessing and started knowing.

Alex M.

Maintenance Supervisor, Manufacturing Plant

"Cut our unknown-fastener downtime by 80%. We used to send someone to the hardware store with a baggie of mystery screws — now we snap a photo and order the right part in minutes."

Yuna P.

Field Technician, HVAC

"I keep a ruler in my tool belt now. One photo, confirmed pitch, done. Saves me at least 20 minutes per service call when I hit a non-standard fastener."

Carlos S.

Custom Fabricator

"Batch scan is the feature I didn't know I needed. I dumped a bin of mixed hardware, scanned the lot, and had a clean parts list exported in under two minutes."

Pricing

Start free. Upgrade when you need more.

Identify fasteners at no cost. Go Pro for deeper history, batch scans, and full exports.

Free

Identify fasteners right away — no credit card

Single fastener photo ID
Thread pitch + diameter
Metric and imperial support
Basic identification history

Get started free

Best Value

Pro

$3.99/month

For teams, repeat jobs, and full reporting

Everything in Free
Multi-fastener batch scans
Advanced history with search & filters
Export clean PDF/CSV reports
Standards compatibility guidance
Priority support & updates

Start Pro free trial

FAQ

Got questions? We have answers.

Everything you need to know about photo accuracy, standards, and compatibility.

Free resource

Learn the craft behind the scan

Step-by-step tutorials on screw sizing, thread pitch validation, and photo-based identification — so you know exactly what the app is doing under the hood.