What's the difference between special-shaped screws and ordinary screws?

The difference between special-shaped screws and ordinary screws lies in whether there is a national standard. Special-shaped screws are generally used in special occasions and have special purposes, and special tools are needed for fastening and loosening. Compared with standard screw fasteners, special-shaped screws show superior characteristics in many aspects. Shenzhen Shishitong Metal Products Co., Ltd. can customize the production of special-shaped screws.