What is your IQ? Do you want to know? Play Nuts & Bolts 3D: Screw Master to test your smart Being fun and smart simultaneously challenges and trains your mind while having fun with endless pin puzzles. Screw it out and set it free for all blocks in the levels, become master puzzle solving and have fun with the imaginative games we've created just for you. 🎮 Easy but fun gameplay Tap and tap only to move all screws get out the block, and remove all blocks to win this game 😎 Various Diffic