Color Painted Customized Metal Roofing Self Drilling Screws and Washers

1. Product Description

Hex Washer (Unslotted) Head Self Drilling Screws (Zinc-Plated Steel) are designed for use in metal applications. Self-Drilling Screws, also known as Tek screws, eliminate the need for a pre-drilled hole.

Like self tapping screws, self drilling screws cut threads while being installed. A self drilling screw, however, has a notched point that acts as a drill point and therefore does not require a pre-drilled hole before installing. The generic name for these screws are Self Drilling,he 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.

2. Specification

3. Application

• For the fastening process in steel, they are used on steel frame construction or fastening other materials on steel.
• For the fastening process in wood, they are used for applications in wood structures or industrial lightweight constructions, such as roof deck, flooring.
• For the fastening process in aluminum, they are used for special industrial applications, construction and manufacturing of windows.

4. Advantages

1.The Special technology treatment of the surface makes the product anti-corrosion , antirust and durable.

2.Exact forging standard of knife edge and high hardness of surface make it easy to drill.

3.Using the advanced technology to control the core hardness, avoiding rupture effectivity,

4. Quick self drilling , drilling , tapping, locking the oncce, and combining with the strength.

5. Save  contruction time, improve working efficency.

6. Technology, professional manufacturing , quality assurance.

• Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.
• Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
• Cost effective: Competitive prices with factory directly supply
• Perfect fastening solution with 20 years experiences to solve your problem: Wide range of parts selection.
• Customized Ideal Fasteners: customized services according to the samples and drawings offered.

5.  More pictures