China Factory wholesale Stainless Machine Screws - Sizes 3.9 M12 Philips Cross Recessed Carbon Steel Countersunk Csk Head Galvanized 160 Sds Self Drilling Tek Screw For Metal – YouYou factory and suppliers

Factory wholesale Stainless Machine Screws - Sizes 3.9 M12 Philips Cross Recessed Carbon Steel Countersunk Csk Head Galvanized 160 Sds Self Drilling Tek Screw For Metal – YouYou

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Factory wholesale Stainless Machine Screws - Sizes 3.9 M12 Philips Cross Recessed Carbon Steel Countersunk Csk Head Galvanized 160 Sds Self Drilling Tek Screw For Metal – YouYou Detail:

What is Modify Truss Head Self Drilling Screw?

Phillips modified truss head self drilling screws feature a Phillips drive and a self drilling (TEK) point to pierce through 20 to 14 gauge metals. The threads on these screws also cut their own threads into either wood, plastic or sheet metal. Phillips modified truss head screws feature an over-sized domed head with a flange, similar to an integral washer. Modified truss head screws have a 100 degree undercut which creates a larger area beneath the screw’s head for a larger bearing surface.

These Flat Head screws have a point “like a drill bit”, these screws create their own hole, and their own thread in one action.
This is probably where the confusion with self-tappers comes in – both kinds of screws are technically self-tapping as far as 
the function of their threads are concerned, but the massive difference is in the function of their points.
* High Quality Steel with Superior Rust Resistant Ensure, More Solid and not Easy to Break;
* It is wood drill tail screw, mainly used in steel structure caigang watt fixed can also be used for fixing the simple
construction of the sheet material;
* How to use? Self-Drilling Screws, eliminate the need for a pre-drilled hole. The length of the drill point determines the
material thickness which the screw can reliably penetrate. When selecting a self-drilling screw design, it is important to
consider the material thickness and type of materials to be joined. These stainless are great to use in environments that are damp
* Package: Poly Bags, Plastic Boxes, Cartons, or Customized.
Features
*Countersunk Self-Drilling Screws - Plain Plated
*Stainless steel 
*Countersunk head
*Phillips cross head drive
*DIN 7504P H

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