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Quick reference for screw dimensions and drill sizes
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.
Screw head types include:
* Pan
* Button
* Socket Head Cap Screw
* Round
* Flat
* Hex
* Binder
* Fillister
* Truss
What's New in the Latest Version 1.3.1
Last updated on Jun 19, 2025
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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Nuts & Bolts PRO
1.3.1 by Tim Judkins
Jun 19, 2025
$2.99