Attention, all puzzle games lover. Before mastering complex puzzles, tighten up the nuts and bolts first!  Features -Stunning graphics and responsive controls -Realistic board and nuts and bolts -Plenty different screw puzzle for real bolts master! -Smooth UI makes puzzle solving more pleasing!  A challenging puzzle game. Your goal is to free all sticks by unscrewing the pins on the board. Time to train your nerves in brain-teaser games! The nuts and bolts game is easy to understand but difficult to master, suitable for players of all skill levels!  Face various screw puzzle with different design that require problem-solving skills. As you progress through the scerw puzzles, the difficulty level increases, testing your skills and challenging you. Some levels may appear with no clue to solve. But it’s not rocket science, it’s just nuts and bolts! So don't be afraid to try it out! With unlimited restart chance, let's enjoy the pleasure of screw puzzle games and become bolts master!