Ball head screws: The ball head screws must be given the size of the ball head when purchasing, such as the radius of the ball head, whether the top of the ball head needs the groove type, and the diameter of the rod below the ball head.
Flat head screws: The flat head code is C. The flat head screws can also be called a thin head screws. Generally speaking, the thickness of the head of the flat head screws is not very thick, and it is basically thin. The flat head screws is screwsed into the product, and the head will not be flush with the surface of the product like the countersunk head screws, and will be exposed to the outside.
Countersunk head screws: The countersunk code is K. The head of the countersunk head screws is like a funnel. This kind of screws is mainly used for the fixing of some thin plates. The entire head of the screws will be on a horizontal surface with the fastened object after the fastening is completed, and will not protrude. The product will look more beautiful.
Hex head screws: Hex head code is H. Hexagon head screws are also called hexagonal screws and hexagon socket bolts. Hexagon heads with hexagonal head HM5 and above specifications need to be considered when the torque is large and the load is strong.
Hexagonal band screws: The hexagonal band code is HW. When the hexagonal flange screws goes up to the hole, the head is small, tools can be used, and the lower meson can also be used for fastening. It is safer on softer and less wear-resistant materials, and will not cause perforation.
T-head screws: T-head screws can be considered when the hole for the lock is relatively large and the material is soft.
