Frame Mounting Screw Set. Whether you're a beginner or a seasoned pro, losing a frame mounting screw could be a pain. these high-quality Replacement mounting screws guarantee a secure and reliable connection for your skates and frames, ensuring a smooth and enjoyable ride every time. There are 12 screws in the pack, all lengths that you would need with some extra washers. 4 screws in 10mm, 4 screws in 12mm and 4 screws in 15mm.