Countersunk screw with square slot

Countersunk screw with square slot come in different sizes—diameters from #2 to 1/4 inch and lengths from 0.5 to 4 inches. This means they work for different material thicknesses, whether you’re using thin or thick stuff.

The countersunk screw with square slot with two types of threads: coarse threads for wood or plastic, and fine threads for metal. The head angles are usually 82° or 90°, which fit standard countersink bits,so you don’t need special tools unless your project is really unique.

If you have a specific project that needs custom sizes, Xiaoguo® can make these screws to fit. There are also sizing charts that show all the options, helping you pick the right screw. This way, you’ll get the best fit for how much weight the material needs to hold and what it’s made of.

Features

Countersunk screw with square slot get surface coatings like zinc plating, black oxide, or phosphating to work better. Zinc-plated screws don’t rust easily in damp environments, while black oxide gives them a smooth black finish and some rust protection. Phosphated ones help paint stick better and make the screws smoother, which is good for parts that are already coated or painted. For really harsh conditions, ceramic or epoxy coatings can protect against chemicals. The screws are coated so they can last longer and are more rust and corrosion resistant than uncoated screws in harsh environments.

FAQ

Q:  How does the countersunk screw with square slot design compare to Phillips or Torx drives in terms of torque resistance?

A: The square recess drive (also called Robertson) transfers torque better than Phillips screws because the square shape fits the driver tightly, which means less slipping when you’re tightening them. It can handle about 10% more torque than Phillips, though a bit less than Torx.

Therefore, countersunk screw with square slot can be used in situations where medium torque work is required,like putting furniture together or working on machinery where you want to drive screws quickly without spending too much. Just remember to use driver bits that match the screw size (like #0 to #3) to avoid stripping the recess.

Material selection