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The head of the countersunk head screw is like a funnel

Ball head screw: The ball head screw 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 screw: The flat head code is C. The flat head screw can also be called a thin head screw. Generally speaking, the thickness of the head of the flat head screw is not very thick, and it is basically thin. The flat head screw is screwed into the product, and the head will not be flush with the surface of the product like the countersunk head screw, and will be exposed to the outside.

Countersunk head screw: The countersunk code is K. The head of the countersunk head screw is like a funnel. This kind of screw is mainly used for the fixing of some thin plates. The entire head of the screw 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 screw: 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 screw: The hexagonal band code is HW. When the hexagonal flange screw 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 screw: T-head screws can be considered when the hole for the lock is relatively large and the material is soft.