Yellow Zinc Fine Thread Hex Head Self Drilling Screws are very popular in the Central Asian market, especially in Kazakhstan. With fine thread design, the pitch is smaller, providing a larger contact surface, stronger locking force, and better resistance to loosening.
They are particularly suitable for thin steel plates, since fine threads tighten more smoothly and reduce the risk of stripping. The denser engagement also makes them ideal for resisting vibration and long-term loads. These screws are usually used together with bonded washers for reliable sealing and fastening.
Available sizes:
Diameter: 4.8mm / 5.5mm / 6.3mm
Length: 13mm – 75mm
We supply high-quality self drilling metal screws, including 5/16 self tapping screws and tek 5 screws, to meet various structural and roofing applications.
