# ThreadSpec Pro : Thread Calc

> Precision thread calculator for Unified, UNJ, Metric, and MJ. Tap Drill sizes.

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

## Overview

- **ID:** `com.quantumcoding.threadspecpro`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** QuantumCoding
- **Category:** TOOLS
- **Downloads:** 8
- **Version:** 1.5.6
- **Last updated:** 2026-10-24
- **First published:** 2026-10-08
- **Publisher country:** US
- **Size:** 20 MB
- **Data as of:** 2026-11-04
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.quantumcoding.threadspecpro)
- **Privacy policy:** [https://sites.google.com/view/threadspecproprivacypolicy/home](https://sites.google.com/view/threadspecproprivacypolicy/home)

## Description

ThreadSpec Pro is a thread calculator for machinists, CNC programmers, manufacturing engineers, and inspectors. Full thread limits and data, pre-plate limits, tap drills for cut and form taps on internal threads, and canned cycle output in G-Code and Siemens CYCLE97.<br><br>Look up common unified and metric sizes from reference tables, or calculate specials with ASME B1.1 and ISO 965-1 tolerance formulas. Cut tap and form tap drill sizes in results. Built with speed and time-saving in mind. Instant results.<br><br>WHAT IT DOES:<br><br>• CNC thread calculator<br>• Unified: UN, UNC, UNF, UNEF, NPT, NPTF, BSPP, and BSPT<br>• Controlled root: UNJ / MJ<br>• Metric coarse, fine and extra fine<br>• External and internal classes<br>• Best wire/ball size with constant<br>• MOW for external threads, MBB for internal threads<br>• Plating range with pre-plate limits<br>• Thread height, lead, helix, single/double depth<br>• Cut tap and form tap drill sizes on internal threads up to 1.500&quot; and 36 mm<br>• Recommended RPM calculation using material SFM, tool, and thread size<br>• Canned cycle generator for Fanuc, Haas, Mazak EIA, and Siemens CYCLE97<br>• Single-start or multiple-start canned cycle generator<br>• Copy, Share, or Print canned cycle code box<br>• Job number, part number, and heat-lot fields<br>• Save, print or share PDF report<br>• History saved (PDF, PRINT, SHARE)<br><br><br><br>SOURCE LABELS<br>TABLE means the size was taken from the in-app reference table.<br>CALCULATED means the size used the published tolerance formulas. Official tables still win when you are inspecting a part.<br><br>HOW TO USE IT<br>Pick series, class, and a common size, or type a special diameter and pitch. Add the plating min/max when the print calls for coating. Thread limits will be calculated accordingly. PDF, print or share report.<br><br>IMPORTANT<br>ThreadSpec Pro is a shop helper. It is not a certified gage and not a substitute for ASME, ISO, the customer print, or your inspection department. Verify critical values before you cut or accept a part.<br><br>From Quantum Coding.

## Rankings

- #2,920,398 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `com.android.vending.CHECK_LICENSE`
- `com.quantumcoding.threadspecpro.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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