Outdoor Countersunk Ribbed Head Selfdrilling Screws

Countersunk head screw can also be called flat head screw, countersunk head screw, half countersunk head screw, half countersunk head screw. Generally, countersunk head Screws are cross grooved, which is the national standard number above the national standard specification, that is, the national standard number is GB / t846-1985. Countersunk head screws are commonly used in electrical equipment, electronic machinery, mechanical equipment, household appliances, digital products, water conservancy engineering, decoration construction, etc. The countersunk head screw is usually made of metal screw and wire rod pier. After forming, it rubs the teeth to form a cylindrical shape. The head is flat, such as an inclined plane around the side of the screw, so that the screw can tightly lock the screw cap or other objects. The top diameter of the countersunk head screw is larger, and it can be round or hexagonal, so that tools such as a screwdriver or wrench can turn the screw. The protruding top also prevents the screw from drilling too deep into the material and increases the pressure of the screw on the material. Countersunk screws can usually be removed or retightened at will without compromising their efficiency. They also provide greater strength than screws and can be reused. The head of the product material used for the countersunk screw can be completely sunk, and the head of the screw will not hinder.

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