Payment & Shipping Terms:
|Material:||DIN 7981||Head Style:||Stain Steel|
|Drive Type:||Phillips Drive||Standard:||DIN 7981|
|Thread Type:||Tapping Thread||Finish:||Silvevy Dacromet|
Steel phillips pan head self tapping screw dacromat silver coated
Self-tapping screws are those that can form their own threads as they are driven into the material. Plastic requires a specially designed thread profile as tapping screws used with steel can result in residual stresses in the plastic that can degrade the structural integrity of the assembly. Plastic thread-forming screws give you more flexibility and quickly assemble components with fewer fasteners. When looking into self-tapping screws, the first step is to decide what type of self-tapping screws are best suited for the application.
Self-tapping screws have a wide range of tip and thread patterns, and are available with almost any possible screw head design. Common features are the screw thread covering the whole length of the screw from tip to head and a pronounced thread hard enough for the intended substrate, often case-hardened.
The type B tip is blunt and intended for use with a pilot hole, often in sheet materials. The lack of a sharp tip is helpful for packaging and handling and in some applications may be helpful for reducing the clearance necessary on the reverse of a fastened panel or for making more thread available on a given length screw.
Raw Material: Carbon Steel
Carbon steel is a steel with carbon content up to 2.1% by weight.
The purpose of heat treating carbon steel is to change the mechanical properties of steel, usually ductility, hardness, yield strength, or impact resistance.
Case hardening processes harden only the exterior of the steel part, creating a hard, wear resistant skin (the "case") but preserving a tough and ductile interior.
Dacromet® is a sacrificial zinc flake water-based coating system developed and applied to components to provide corrosion resistance.Dacromet is inorganic and firmly adhesive, made from water-based chemicals and passivated zinc and aluminium flakes in a binder. This is a patented chemistry and appears metallic silver in appearance. The coating is especially suited for thin layer thicknesses.
Q: Are you trading company or manufacturer ?
A: We have our own factory, which is located in Ningbo, Zhejiang. Both design team & manufacture team will support our products.
Q: What’s your main products? Can customize or not?
A: Our main products are screws.
Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge if we stock, but do not pay the cost of freight.
If you are interested in self tapping screw, Please do not hesitate to email us or call us. Our professional team will assit you to purchased the quality products.