A self-tapping (Self drilling screw) screw is a screw that can tap its own hole as it is driven into the material. More narrowly, self-tapping is used only to describe a specific type of thread-cutting screw intended to produce a thread in relatively soft material or sheet materials, excluding wood screws. Other specific types of self-tapping screw include self-drilling screws and thread rolling screws.
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.
Main types are Hex Head SDS(BLK EPDM WASHER); Counter sunk Phillips head(CSK); Bugle head(BH); Truss Phillips Head(TPH); Farmer Head(FH),Truss Phillips Head(TPH); Pan Phillips Farmer Head(PPFH)
Surface treatment includes: Blue zinc plated, yellow zinc plated, Black phosphating， paint coating;
For medium duty purpose
Roof deck to steel framing
Accessories to steel framing
Precise cutting edges to improve drill performance with less effort
Provide bigger cover surface in using exterior environment
Point to thread design maximize pullout performance and minimizes back out
Rapid positioning, high drilling speed, Super high quality, fast lead-time, cost-effective, best service
All in strong color box, box design can be required. From 0.5kg small box packing to 5kgs box packing, bulk packing can be accepted