Tap a bin · ←︎ ↓︎ →︎ to sort · ↑︎ scrap
How to play
- Read the head of the screw in the dashed ring. No lines is Grade 2, three lines is Grade 5, six lines is Grade 8.
- Tap its bin, or use ←︎ ↓︎ →︎ on a keyboard.
- At 12 sorted a Scrap bin opens. Rusted, cracked and rounded-off heads go there (↑︎).
- A wrong bin or a screw off the end of the belt is a miss. Three misses stops the line.
Each screw is 1 point, and every 10 in a row adds a 5-point bonus. The belt speeds up as you go, heads start coming in rotated, and after 24 they spin as they ride.
Grade ratings
Every run is rated with the head markings used on SAE J429 cap screws.
Grade 8Six radial lines
60+
Grade 5Three radial lines
30–59
Grade 2No markings
10–29
Mixed binKeep sorting
0–9
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