Screw Nuts and Bolts

Screw Nuts and Bolts invites you into a world of interlocking metal. Each level presents a compact machine held together solely by threaded fasteners. Your goal is simple: remove the right bolts in the right order to pull the whole thing apart, revealing the solution within. The game’s realistic physics means that every turn of a screw has consequences—loosen the wrong support and panels may jam or slide unexpectedly. But this isn’t just about taking things apart. As you progress, you’ll also need to reassemble these devices by matching bolts to their correct holes and tightening them just enough. The challenge lies in observing how each component connects, predicting what will happen if you remove a crucial bolt too early, and planning your moves carefully. With dozens of increasingly intricate contraptions, the game offers a satisfying mental workout for anyone who enjoys tinkering and solving spatial puzzles.

WaffleMath

Screw Nuts and Bolts

Common Core State Standards

Every game supports specific Common Core standards. Browse the full standards library.

MP3Argue with math MP1Make sense of problems MP7Use structure MP4Model with mathematics MP2Reason abstractly 1.G.A.1Shape attributes K.G.A.1Position words 2.G.A.1Draw shapes with attributes

Practice by Skill

Games by Grade

3rd Grade · 4th Grade · 5th Grade

Share to Google Classroom

What is Screw Nuts and Bolts

Crack open cleverly engineered machines by unscrewing their parts. Every level is a new mechanical puzzle waiting to be solved.

How to Play

Use your mouse or finger to select and rotate the bolts counterclockwise to loosen and remove them, and clockwise to tighten or reinsert. Pay attention to the order you take things apart—some bolts hold critical pieces in place.

Tips for Playing

Observe the entire contraption before making your first move.
Remove bolts that seem least load-bearing first to avoid sudden collapses.
If a piece doesn’t move, you likely need to loosen or remove more bolts around it.
Reinsert bolts if you need a stable grip to access other components.
Plan your reassembly the same way you planned the removal—what comes off last goes on first.

Frequently Asked Questions

What is the main objective in Screw Nuts and Bolts?

The goal is to dismantle each mechanical puzzle by unscrewing the correct bolts, then reassemble it if required, completing the level within the time or move limit.

How do I control the game?

You use your mouse (or touch on mobile) to tap a bolt, then drag to rotate it. The direction you rotate determines whether it loosens or tightens.

What happens if I loosen the wrong bolt?

Sometimes loosening a wrong bolt can change the arrangement, making the puzzle harder. But you can usually re-tighten or re-insert it to revert your mistake.

Are there different levels with increasing difficulty?

Yes. Early levels introduce simple panels with a few bolts, while later ones feature complex interlocking parts that require careful planning.

Can I play on my phone or tablet?

The game is designed to work with both mouse and touch controls, so it runs smoothly on most devices with a screen.