Nuts & Bolts

1.3.1

Tim Judkins

3.79

560 reviews

100,000+
Downloads

Free

Quick reference for screw dimensions and drill sizes

Pros & Cons

Wide coverage of standard and metric screw sizes
Free core data with PRO upgrade for extended head dimensions
Fast, simple interface for quick lookups
Lightweight, focused tool for quick dimension checks

Advanced head types (e.g., Socket Head Cap, Round, Flat, Hex) are available only in PRO
Some specialized data or features may require upgrading to PRO

About Nuts & Bolts

Nuts & Bolts is a tools app developed by Tim Judkins.

Download Statistics

Nuts & Bolts has been downloaded 270 thousand times. In the last 30 days, the app was downloaded 440 times.

User Ratings

Nuts & Bolts is rated 3.79 out of 5 stars. The rating is based on 560 ratings.

App Information

Nuts & Bolts is FREE to download. The APK download size is 5.03 MB. The latest version available is 1.3.1. The last update was on June 19, 2025.

Technical Requirements

Nuts & Bolts requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play March 2011.

Description

Nuts & Bolts is a simple application to look up screw sizes. It provides screw diameters, screw head dimensions, tap drill sizes, and clearance holes for standard sizes #0 to 1" and metric sizes M1.4 to M24. A simple interface allows you to cycle through sizes and screw types OR tap any dimension to quickly jump to the size you want.

Free version includes dimensions for screw diameters, tap drill sizes, clearance holes for all standard and metric sizes as well as screw head dimensions for pan and button head screws.

Get the PRO version and unlock screw head dimensions for:
* Socket Head Cap Screw
* Round
* Flat
* Hex
* Binder
* Fillister
* Truss

Recent changes:
Bug fixes and improvements

Show more Show less

More data about Nuts & Bolts

Price	Free to download
Total downloads	270 thousand
Recent downloads	440
Rating	3.79 based on 560 ratings
Ranking	Not ranked
Version	1.3.1
APK size	5.03 MB
Number of libraries	16
Designed for Android	4.4+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

Get a detailed PDF report for Nuts & Bolts with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Alternative downloads for the Nuts & Bolts app

Nuts & Bolts compared with similar apps

Common keywords of similar apps

Dimensions Simple Diameters Clearance Holes Version Screw Sizes Head Drill Tap Nuts Bolts Standard Metric

Keywords missing from this app

Puzzle Wood Game Puzzles Jam Sort Challenge Levels Experience Unscrew Pin Play Level Fastener Screws Enjoy Master Brain Fun Nut Solve Challenges Thread Free Relaxing Logic App Time Designed Pins Solving Charts Bolt Color Games Perfect Tools Casual Skills Move Size

Google Play Rating history and histogram

Downloads over time

Nuts & Bolts has been downloaded 270 thousand times. Over the past 30 days, it averaged 15 downloads per day.

Changelog of Nuts & Bolts

Show changelog

Developer information for Tim Judkins

Tim Judkins

android@botnerd.com

Website

Legal name:

Address:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on Nuts & Bolts for Android

★★★★★ Fernando Fernandez · Apr 2, 2018

can you add this app to Apple App Store ? I change my phone from an android to a iPhone and can't be able to download from the App Store. Is very useful and I used every day. Please add to the App Store

★★★★★ David Merriman · Feb 3, 2022

If all you need is the most basic info - clearance, tap, drill, etc. - for screws, this is the app. Don't know about any update (should, just to make the warning go away), but it seems to run fine; I mean, it isn't like the screws *mutated*, or anything. I'm fine with it, and thank the author for the time trouble. Update, and I'll spring for the Pro license.

★★★★☆ T. G · May 3, 2019

Need to update more metric and inches sizes pitch calculation. Kindly update it. Otherwise, the app is good.

★★☆☆☆ Mary Atkins · Oct 7, 2015

Cannot Zoom In Hard to see data. Unable to zoom in.

★☆☆☆☆ Santiago Arellano · Oct 29, 2022

Shows bolts but no nuts. Why call it NUTS and bolts when you leave out the nuts?

★☆☆☆☆ Christopher Redmon · Dec 17, 2017

Free app that's trying to get you to buy the pro version and has no nut sizing.

★☆☆☆☆ Roy Tellason · May 16, 2022

Just updated, and now it immediately crashes, saying "There was an error reading screw sizes". Removed it and re-installed, same behavior. Uninstalling...

★☆☆☆☆ HN Zomer · Sep 18, 2024

I didn't find it useful. Was looking for an ap that would tell me the size of a nut ot bolt I am looking at

Google Play Rankings for Nuts & Bolts

This app is not ranked

Technologies used by Nuts & Bolts

Nuts & Bolts is requesting 10 permissions and is using 16 libraries.
Show details

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps