# Thread Pitch Calculator — Screw & Bolt Thread Gauge > Measure screw and bolt thread pitch using your device's screen. (iPhone/iPad app by Bhavinkumar Satashiya.) - Source: https://appshunter.io/ios/app/thread-pitch-calculator/id1382184074 (this page in markdown: same URL + `.md`) - Developer: [Bhavinkumar Satashiya](https://appshunter.io/developer/1361485921) - Category: Utilities - Price: $4.99 - Rating: 1.80/5 from 4 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 2 MB - Languages: American English - Released: 2018-05-24 - Data updated: 2026-09-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/thread-pitch-calculator/id1382184074/reviews.md ## What is Thread Pitch Calculator? Measure and identify screw and thread pitch quickly and easily with Thread Pitch Calculator. No more guessing with paper, rulers, or physical thread gauges. Simply open the app, place the screw or thread against the screen, and compare it with the on-screen thread patterns. The app automatically calibrates to your screen size for accurate measurement. Whether you're working with metric screws, US threads, or pipe threads, Thread Pitch Calculator helps you find the right thread size and pitch in seconds. Key Features Measure thread pitch directly on your phone screen Automatic screen calibration Easy-to-use thread measurement interface Compare screws with visual thread patterns Metric thread sizes US thread sizes NPT (National Pipe Taper) threads BSPT (British Standard Pipe Taper) threads Metric screw sizes Quick reference for common thread specifications Simple and convenient tool for workshops, DIY, repair, and maintenance Supported Thread Types Metric Threads Identify common metric thread pitches and sizes. US Threads Check common US thread sizes and thread pitches. NPT Threads Reference National Pipe Tapered thread sizes. BSPT Threads Check British Standard Pipe Taper thread sizes. Metric Screw Sizes Compare and identify common metric screw dimensions. Perfect For DIY projects Mechanics Engineers Workshops Hardware professionals Maintenance and repair Machine shops Home improvement Screw and fastener identification Stop carrying a ruler or guessing the thread pitch. Use Thread Pitch Calculator as a convenient thread measurement and reference tool wherever you work. ## Key features - Measure thread pitch on screen - Automatic screen width calibration - Supports metric thread sizes - Supports US thread sizes - Supports NPT and BSPT threads - Measures metric screw sizes ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/thread-pitch-calculator/id1382184074/reviews.md ### 4/5 — This app did the job I needed it to do. *2024-12-22* It’s important to note that because screws have a head… it’s impossible to put the screw threads itself directly against the glass of your phone. But - given that truth - and the fact that non-custom screws come in a finite range of standard sizes - it is possible to make a very good guess at the screw you need from this app. I know this because I made a very good guess with this app today. I knew I needed a metric screw, and I had one copy of it. The app let me choose the closest M value, and the closest thread gauge (remember, I couldn’t put the screw threads directly against the glass) and I could easily obtain the length. I went to the nearby DIY warehouse, and yes, the first package of screws I chose fit perfectly into the old device I owned that was missing a screw. ### 1/5 — Don’t do it *2022-05-19* Absolute garbage. Not interactive. When you’re in a pinch to determine a thread, spending loot on this will further infuriate you. I wish I could get my money back. ### 1/5 — Not worth it *2021-07-25* Don’t waste your money. What you see in the example is what you get. Needs more for the price ### 1/5 — Must be missing something here. *2020-06-02* No stars. Had to put one star on the review to let me submit. Have got no idea how to use this. The other apps I have all make sense and give me what I want. Stick to a vernier gauge and tables or other apps. Just wasted £4:99. ### 1/5 — Not worth a cent *2019-08-27* This app is a scam to get money, absolutely useless,and to charge for it even worse, I should have not bothered ### 1/5 — Not accurate *2018-08-13* I held some 1/4 - 20 threaded rod up to the screen of my iPhone 7 and the gauge shows 16 threads per inch. ## Frequently asked questions about Thread Pitch Calculator ### What is the price of Thread Pitch Calculator? Thread Pitch Calculator is a paid app priced at $4.99. This one-time purchase grants you access to all its features without any recurring fees. ### Does Thread Pitch Calculator have ads? No, Thread Pitch Calculator is ad-free. You can use the app without any interruptions from advertisements, ensuring a clean and focused user experience. ### What devices is Thread Pitch Calculator compatible with? Thread Pitch Calculator is available for iPhone, iPad, and iPod devices. It is designed to function on Apple's mobile operating system. ### How accurate is Thread Pitch Calculator? The app automatically calibrates to your screen width to ensure accurate measurements. Users can measure thread pitch directly on their device's screen. ### What types of threads can Thread Pitch Calculator measure? Thread Pitch Calculator supports a variety of thread types, including metric thread sizes, US thread sizes, NPT (National Pipe Tapered thread), BSPT (British Standard Pipe Taper), and metric screw sizes. ### When was Thread Pitch Calculator last updated? The latest version of Thread Pitch Calculator was released on March 10, 2021. This indicates the app has received updates to maintain compatibility and functionality. ### What is the age rating for Thread Pitch Calculator? Thread Pitch Calculator has an age rating of 4+. This means it is suitable for users aged 4 and above, indicating no mature content. ### What do users think of Thread Pitch Calculator? Based on the provided data, Thread Pitch Calculator has a rating of 1.8 stars from 4 ratings. This suggests a mixed to negative user sentiment regarding its performance or features. ## Version history (last 3 releases) ### 1.2 — 2026-08-25 - Performance improvements - UI refinements - Minor bug fixes ### 1.1 — 2021-03-10 Performance Improve and fix the design issue ### 1.0 — 2018-05-08 No release notes. ## Apps similar to Thread Pitch Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Screw Pitch Gauge](https://appshunter.io/ios/app/screw-pitch-gauge/id6749295527) | — | Free | Utilities | | [Thread Calculators](https://appshunter.io/ios/app/thread-calculators/id1670586227) | 5.0 (1) | $1.99 | Utilities | | [GCode Scanner for CNC Machines](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022) | 5.0 (3) | Free | Utilities | | [Tracker Console](https://appshunter.io/ios/app/tracker-console/id1458656064) | — | Free | Utilities | | [City of Frankfort, Kentucky](https://appshunter.io/ios/app/city-of-frankfort-kentucky/id1631410587) | 5.0 (3) | Free | Utilities | | [Flange Hole Marker Pro](https://appshunter.io/ios/app/flange-hole-marker-pro/id1486290745) | — | $2.99 | Utilities | ## More apps by Bhavinkumar Satashiya - [Flat Pattern Bend Calculator](https://appshunter.io/ios/app/flat-pattern-bend-calculator/id1361485922) - [Sheet Bending Calculators](https://appshunter.io/ios/app/sheet-bending-calculators/id1361950390) - [Welding Calculator for Metal](https://appshunter.io/ios/app/welding-calculator-for-metal/id1366542753) - [Ruler with Caliper, Protractor](https://appshunter.io/ios/app/ruler-with-caliper-protractor/id1368462815) - [Cable Lugs & Connectors](https://appshunter.io/ios/app/cable-lugs-and-connectors/id1370274265) - [Gold Exchange Rate](https://appshunter.io/ios/app/gold-exchange-rate/id1372446098) All apps by Bhavinkumar Satashiya: https://appshunter.io/developer/1361485921 ## Related topics [threading](https://appshunter.io/ios/topics/threading) · [thread length calculator](https://appshunter.io/ios/topics/thread-length-calculator) --- *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 2026-09-01.*