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Break Room

Flappy Nut

Keep a zinc wing nut airborne and thread it between hex cap screws. Every run earns a grade rating based on real SAE head markings.

Best: 0
Flappy
Nut

Keep the wing nut airborne and thread the gaps between the cap screws.

Tap to start

Space or tap to flap

Get the appAdd Flappy Nut to your home screen. Opens full screen and works offline.
How to play
  1. Tap the game, click it, or press Space to give the wing nut a lift.
  2. Fly through the gap between each pair of cap screws. Every pair you clear is one point.
  3. Touch a screw or the floor and the run is over.

The screws speed up and the gaps tighten a little as your score climbs. At 15 some screws start sliding up and down, and at 30 they all move, faster and closer together.

On your phone

Open the app version. On Android tap Install; on iPhone tap Share, then Add to Home Screen. It gets its own icon and plays full screen, even without signal.

Grade ratings

Your run is rated with the same head markings used on SAE J429 cap screws.

Grade 8Six radial lines
30+
Grade 5Three radial lines
15–29
Grade 2No markings
5–14
Loose nutKeep tightening
0–4

Your best score is saved in this browser only.