# Thread Gauge

> Measure screw pitch & diameter

Canonical page: [https://chrome-stats.com/d/id6781018381](https://chrome-stats.com/d/id6781018381)

## Overview

- **ID:** `id6781018381`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Imad Jawad
- **Category:** Utilities
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.1
- **Last updated:** 2026-07-07
- **First published:** 2026-07-01
- **Size:** 4.04 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/thread-gauge/id6781018381)
- **Privacy policy:** [https://imadjawad.github.io/threadgauge-pages/privacy.html](https://imadjawad.github.io/threadgauge-pages/privacy.html)

## Description

Snap a photo, get the thread size in secondsmetric or imperial. Measures screw pitch and diameter on your iPhone, using a credit card or SD card.

Thread Gauge turns your iPhone into a precision thread gauge. Photograph a screw next to a common reference card, and it measures the thread's pitch and diameter, then identifies the closest matching standard — in both metric and imperial.

No calipers, no thread gauge set, no guesswork. Just a photo.

HOW IT WORKS

Lay the screw on a plain background, parallel to a reference card: a credit or ID card (85.6 mm) or a full-size SD card. Use the light intensity slider to apply enough light to minimize shadows around the screw. Use the bubble level to find the best lighting angle — a green dot inside the circle is ideal. Move your phone closer or farther to get the sharpest focus; the sharper the image, the more precise your measurement. Snap a photo or pick one from your library, choose which card you used, and tap Measure. ThreadGauge uses the card as a known scale to compute the real-world thread pitch and major diameter.

It all runs on your device — no server, no account, no tracking. Nothing you photograph ever leaves your iPhone.

WHAT IT IDENTIFIES
- Metric coarse and fine (M-series)
- Imperial UNC and UNF
- Thread pitch (mm and TPI) and major diameter
- The closest standard match, with a confidence indicator

When two standards are nearly identical — for example, a #10-32 and M5×0.8 — Thread Gauge flags the ambiguity so you can confirm with a physical gauge instead of trusting a borderline read.

FEATURES
- Metric and imperial in one tool
- Tap to look up any identified size online
- On-screen guidance for lighting, angle, and framing
- Made for makers, machinists, mechanics, and anyone holding a mystery bolt

PRICING
Your first 3 measurements are free. One simple in-app purchase unlocks unlimited measurements — no subscription, ever.

PRIVACY
Thread Gauge collects no personal data, and your photos stay on your device.

Questions or feedback? Email imad.naqqash@gmail.com

## Rankings

- #663,057 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6781018381)