Nuts and Bolts Unblocked — Play Free Online
More Physics Puzzles games
Nuts and Bolts unblocked: play Nuts and Bolts online free right here in your browser — no download, no sign-up, works on a school Chromebook.
Nuts and Bolts is a tactile physics puzzle built around sequence, weight, and mechanical clearance. Each level presents a suspended arrangement of wooden bars, metal strips, and shaped plates fastened to a backboard with threaded pins. Your objective is straightforward: remove the pins one by one and relocate them into open holes so that every piece drops off the screen.
What makes the puzzles satisfying is how gravity transforms each move. Stripping a screw from one side of a long plank causes it to pivot downward like a pendulum, swinging across the board and potentially uncovering buried screws beneath it. If you move pins in the wrong order, swinging planks can get wedged against other pieces, block key target holes, or leave you without any open slots to stash another screw.
How to play
Every board is played entirely with simple click or tap inputs:
- Select a screw: Click or tap any accessible screw on the board to loosen it.
- Choose an open hole: Click an empty hole on the backboard to screw the pin into its new position.
- Release plates: Once all fastening screws on a plank are relocated, the plank will fall freely off the playing area.
- Restart when stuck: Tap the restart icon at any time to instantly reset the board to its starting layout.
Because you only have a limited number of unoccupied holes on the board at any given time, every pin you reposition takes up valuable working space. The challenge lies in identifying which plate can drop first to immediately free up its original hole for future moves.
Tips for clearing tricky boards
Before making your first click, scan the entire construction to identify which planks are layered on top. Screws securing topmost planks must usually be addressed first, since lower plates cannot fall cleanly until upper obstructions drop away.
Pay close attention to pivot points. If a plank is held by two screws, removing the top screw will cause the plank to swing down from the lower screw. You can use this deliberate swing to push other loose pieces or clear visual lines to hidden holes behind the plank.
Always preserve at least one open hole as a buffer. If you fill every vacant spot with relocated pins without releasing a plank, you will end up gridlocked with no legal moves left.
Similar games on Icy Purple Head
If you enjoy the spatial planning of Nuts and Bolts, several other titles in the Icy Purple Head collection offer complementary mechanics. Fans of rotational physics and gravity will appreciate Circloo and Circloo 2, which challenge you to build momentum inside expanding mechanical spheres. For pure grid-based spatial foresight where every rotation must be calculated in advance, Bloxorz provides an equally sharp test of logical planning.
Sessions in Nuts and Bolts are quick and forgiving, making it ideal for short breaks on either a mouse or a touchscreen.
Questions about Nuts and Bolts
Is Nuts and Bolts unblocked at school?
Nuts and Bolts runs in an ordinary browser tab from icypurplehead.org, with nothing to download or install, so it plays on most school Chromebooks and work computers. If a network filter blocks the site, only that network's administrator can change it.
What is the main objective in Nuts and Bolts?
The goal is to clear all wooden planks from the board by unscrewing pins and placing them into open holes so every board falls away under gravity.
What happens if I run out of empty holes?
If every free hole is filled and no remaining screws can be moved, the board becomes stuck. You can use the restart button to instantly reset the level and try a different removal order.
Can I play Nuts and Bolts on mobile devices?
Yes. The touch controls work smoothly in modern mobile browsers on phones and tablets, allowing you to tap screws and empty slots directly without downloading an app.
Does Nuts and Bolts save your level progress?
Your level progress is saved automatically in local browser storage, so you can return later and pick up on the most recently unlocked puzzle stage.
