Sheet metal screws have sharp threads that cut into a material such as sheet metal, plastic or wood. They are sometimes notched at the tip to aid in chip removal during thread cutting. The shank is usually threaded up to the head. Hi-Line carries Slotted Hex Washer Head Sheet Metal Screws in many sizes.

1. Screws made of carbon steel, case hardened tempered
2. Selective hardening produces a point and threads that are hard enough to drill through sheet metal but the load bearing area remains soft enough to be ductile
3. Recommended drill speed 1,800 RPM – 2,500 RPM
4. Zinc plated and tested and undergo salt spray test as per ASTM F1941 and B633
5. Drill tip helps preserve the integrity of the material by avoiding denting
6. Serrations at the bottom of head lock in the screw
7. Screws are intended for sheet but can used on other surfaces like plastics, wood etc.

Application 

Self-Drilling Screws For Metal Used?

• Sheet metal

Sheet metal is one of the most common applications for self-drilling screws. In this case, using self-drilling screws helps speed up the production process when sheet metal is used for framing and other projects. This includes industries such as the automotive industry, furniture, and more.

Sheet metal is one of the most common applications for self-drilling screws. In this case, using self-drilling screws helps speed up the production process when sheet metal is used for framing and other projects. This includes industries such as the automotive industry, furniture, and more.

• Roofing

Another common use for self-drilling screws, the metal roofing process can be sped up tremendously by using self-drilling screws. Self-drilling screws used for metal roofing are typically designed with a washer that forms a tight seal when fastened.

• Framing

Self-drilling screws designed for framing are able to cut straight through even heavy-duty metal studs. In most cases, they have special heads that allow for more holding strength at the cost of driving torque. If drilling through dissimilar metals (steel and aluminum) always use DD Fasteners structural self-drilling screws

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