# Bolt Thread Identifier — Thread Pitch From a Photo

> AI-powered bolt thread pitch identification from a photograph. (iPhone/iPad app by Geared Design Consulting L.L.C..)

- Source: https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021 (this page in markdown: same URL + `.md`)
- Developer: [Geared Design Consulting L.L.C.](https://appshunter.io/developer/1732325276)
- Category: Utilities, Photo & Video
- Price: Free
- Rating: 2.30/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 58 MB
- Languages: American English
- Released: 2024-02-22
- Data updated: 2026-07-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021/reviews.md

## What is Bolt Thread Identifier?

Measure the thread pitch of common bolts by snapping a photo and performing a simple distance calibration.  Custom AI algorithms will then return the matching SAE-UNC, SAE-UNF, or metric pitches.  Fabricators, mechanics, home owners, and hobbyists in general will find the Bolt Thread Identifier App a useful addition to their tool box.

## Key features

- Photo-based thread pitch measurement
- AI-driven pitch matching
- Supports SAE-UNC, SAE-UNF, and metric threads
- Simple distance calibration
- Useful for fabricators and mechanics

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/bolt-thread-identifier/id6468966021/reviews.md

### 1/5 — Needs work

*2025-08-23*

Can only identify a small subset of bolts and the UI is not intuitive at all. Didn’t work for me.

### 5/5 — Does the job

*2025-02-25*

…but not intuitive.

### 1/5 — Doesn’t work

*2024-12-01*

Followed the video demo… Still can’t get it to work. The UI needs more description of what the drop down represents.

## Frequently asked questions about Bolt Thread Identifier

### What bolt thread pitches can Bolt Thread Identifier identify?

Bolt Thread Identifier can match SAE-UNC, SAE-UNF, and metric thread pitches. The app uses custom AI algorithms to determine the correct match after you calibrate the distance.

### How accurate is Bolt Thread Identifier?

The app's accuracy depends on the quality of the photo and the calibration process. Users have provided feedback resulting in a current rating of 2.3 stars from 3 ratings.

### Is Bolt Thread Identifier free to use?

Yes, Bolt Thread Identifier is available for free. There are no in-app purchases or subscription fees required to use its core functionality.

### What devices is Bolt Thread Identifier compatible with?

Bolt Thread Identifier is supported on iPhones and iPads. It is designed for iOS devices.

### How often is Bolt Thread Identifier updated?

The latest version of Bolt Thread Identifier is 1.2, which was last updated on December 29, 2025. This indicates regular maintenance and potential feature additions.

### What is the age rating for Bolt Thread Identifier?

Bolt Thread Identifier has an age rating of 4+. This means it is suitable for users aged 4 and above.

### Does Bolt Thread Identifier have ads?

No, Bolt Thread Identifier does not contain advertisements. The app is ad-free, allowing for an uninterrupted user experience.

### Who developed Bolt Thread Identifier?

Bolt Thread Identifier was developed by Geared Design Consulting L.L.C. They specialize in creating utility applications for various technical needs.

## Version history (last 3 releases)

### 1.2 — 2025-12-29

Age restriction specified.  Fixed demo video links.

### 1.1 — 2024-03-25

New bolt and caliper icon.

### 1.0 — 2024-02-22

No release notes.

## More apps by Geared Design Consulting L.L.C.

- [Imaging Experiments Lab](https://appshunter.io/ios/app/imaging-experiments-lab/id6478242031)

All apps by Geared Design Consulting L.L.C.: https://appshunter.io/developer/1732325276

## Related topics

[threader pro](https://appshunter.io/ios/topics/threader-pro)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-02.*