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Wood screw wood screw and self - tapping screw difference

Views:1     Author:Site Editor     Publish Time: 2019-05-20      Origin:Site

Wood screw wood screw and self - tapping screw difference

1.differences in definitions:

Call wood screw, namely wood screw, it is similar with machine screw, but the thread on screw rod is special wood screw USES rib, can be screwed directly in woodiness component, the metal that is used for taking a pass hole or blame metal part and woodiness component fastening join together.This connection is also a detachable connection.Self-tapping screws are generally fingertip head, coarse teeth, a harder texture of wood screws, also used for aluminum alloy, plastic.A special self-tapping screw used for tapping holes in metal is called a tap.

2. Differences of products :

High hardness, wide thread spacing, deep thread, surface is not smooth, wood screws on the other hand, another difference is more obvious, wood screws after no thread.Wood screw threads fine, blunt and soft.Self tapping screw thread is thick, sharp and hard.

3. Different USES:

A wood screw is a nail designed specifically for wood, into which it will be firmly embedded.If the wood is not rotten, it cannot be pulled out. Even if it is pulled out by force, it will bring out the wood nearby.There is a point to pay attention to, wood screws must be used screwdriver screw in, do not use a hammer knock in, will damage the surrounding wood;Self-tapping screws are used for non-metal or soft metal, without tapping low holes and tapping;Self-tapping screw is pointed, so as to "self-tapping";Ordinary screws are flat, the thickness of the same.It can be on the material that is being consolidated, rely on its own thread, will be consolidated body "att-drill, squeeze, press" give corresponding thread, make each other close cooperate.

 


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