Welcome to 310express ONLINE SHOP! We are selling very thin head, stylish, well designed screw to all over the world from Japan. This screw is popular among drone/robot designer who want the originality, more space and less weight. The shipment will be made quickly from our warehouse just like we are at your next door. The way of order is very simple, you can create your product and add uniqueness with 310Slim very easily! We are welcome to have your comment and picture anytime. Please let us know how our 310Slim worked and colored your project!