A screw is a type of fastener, sometimes similar to a bolt, typically made of metal, and characterized by a helical ridge, known as a male thread or just thread.
Countersunk Screws
A common use is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the surrounding material. Countersunk heads are often used in soft and hard woodworking applications. Countersinking is especially necessary when working with hardwoods.
Countersunk screws are a type of fastening that sits flush with the surface of the material it occupies. These screws typically are used so that you can cover them easily with either a screw cap or piece of wood. Other applications include the need for a fastening not to protrude so other objects can rest upon it stably, or to fasten it further to another object. The typical angle of a countersunk screw head is 82 degrees, but this varies depending on the application.
The countersunk head is usually the most common type used because its unique head allows it to be inserted below the timbers surface and sometimes it is covered with dowel to create a feature.
This head is also easy to use because its head helps to guide the component down. A hole should be pre drilled first though to ensure it stays straight and to prevent the timber from splitting.
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A countersunk screw also can be very useful when dealing with burred holes. Depending on how severe the hole has been burred, it can act as a readily prepared seat for the head of the screw.
Slotted and Phillips drive
This can be used for general woodworking for example fitting hinges to doors. Because the screw is countersunk it can be tightened ‘flush’ to the surface of the material.
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Torx drive
Used with special screw drivers which will not slip when pressure is applied. This is ideal when using screws in corners or confined spaces.
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If you’re interested in purchasing screws, be sure to check out the wide range of standard and custom products from Yuhuang Electronic Technology Co., Ltd.
For more information about screws from us at www.yhscrew.com, please email us at info@www.yhscrew.com. We look forward to hearing from you
