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Add a warm, classic finish to your fastening job with these solid brass countersunk self‑tapping screws. The 90° flat head sits perfectly flush in a standard countersink, leaving a clean, snag‑free surface that looks great on furniture, instruments, decorative metalwork, and visible woodworking joints. Machined from genuine brass, each screw offers natural corrosion resistance without any plating to wear off — the golden tone ages gracefully over time and won’t rust like steel. The sharp, coarse self‑tapping thread cuts its own tight path into sheet metal, wood, plastic, and fiberglass, eliminating the need for a separate tap or pilot hole in most thin materials. Covering M3, M3.5, M4, and M5 diameters with lengths from 6 mm to 40 mm, this range puts a touch of class into electronics, cabinetry, light fixtures, marine trim, and any project where the fastener is meant to be seen.
| Thread Diameter | Available Lengths (mm)* | Head Style | Drive | Material |
|---|---|---|---|---|
| M3 | 6, 8, 10, 12, 16, 20, 25 | Countersunk Flat Head (90°) | Phillips | Brass |
| M3.5 | 8, 10, 12, 16, 20, 25, 30 | Countersunk Flat Head (90°) | Phillips | Brass |
| M4 | 8, 10, 12, 16, 20, 25, 30, 35, 40 | Countersunk Flat Head (90°) | Phillips | Brass |
| M5 | 10, 12, 16, 20, 25, 30, 35, 40 | Countersunk Flat Head (90°) | Phillips | Brass |
* Lengths are overall length (including the head). Conforms to DIN 7982 / ISO 7050 dimensional standards.
No. Brass is an alloy of copper and zinc and does not rust. It will develop a natural patina over time, especially outdoors, but it will not weaken or corrode like steel. The warm gold color ages gracefully and is often appreciated in decorative applications.
In thin sheet metal or soft wood, you can often drive them directly. For dense hardwoods or thick metal, a small pilot hole is recommended to reduce driving torque and prevent the brass threads from galling. Pilot holes will extend the life of the screw and your driver.
Yes. All listed lengths are overall length – from the top of the flat head to the tip. This makes it easy to know exactly how far the screw will protrude through your material.
Yes, brass is an excellent conductor and is commonly used in electrical terminals and grounding lugs. They are non‑magnetic and provide a reliable connection when used in contact with copper wiring or terminals.
