Grey phosphate long chipboard screws.
Long screws are not certain kind of screw. They are different kinds of screws that are longer than 70 mm. They can be chipboard screws, drywall screws, self-tapping screws, self-drilling screws, concrete screws, etc. They are often specially designed for professional industries using to fasten hard or soft woods, chipboard and other tough materials to different kinds of frames.
We can manufacture long screws of different sizes and finishes. These are some of our products in the following pictures.
A long drywall screw.
Long concrete screws with yellow zinc coating.
White zinc coated long self-tapping screws.
Blue zinc coated long self-drilling screws.