Description
Pack of 20 countersunk cross-head self-tapping screws in M4×30mm size, black 304 stainless steel. These countersunk self-tapping screws pack of 20 NZ are the ideal fixing solution for acoustic wall panels, WPC cladding, and decorative wall installations where a clean, flush finish is essential.
Specifications
- Size: M4 × 30mm (4mm diameter, 30mm length)
- Head: Countersunk cross-head (Phillips)
- Material: 304 stainless steel — black
- Head diameter: 7mm
- Head thickness: 2.6mm
- Thread: Self-tapping (no pre-drilling required in most substrates)
- Pack quantity: 20 screws
Why These Screws for Wall Panel Installations?
Countersunk screws sit flush with the surface when fully driven, leaving a clean, professional finish with no protruding head. The countersunk cross-head profile is easy to drive with a standard Phillips bit, and the self-tapping thread cuts its own path into timber substrates without pre-drilling in most cases.
Black 304 stainless steel offers excellent corrosion resistance — important in NZ’s coastal or high-humidity environments — while the black finish blends discreetly with dark panel finishes or can be concealed with a matching cover cap. These screws are a popular choice for NZ acoustic wall panel installers who want a secure, clean fixing.
Compatibility
These screws are suitable for fixing into timber battens, MDF, plywood, and similar timber substrates. For fixing into steel studs or masonry, different fixings are required. Check your substrate before ordering.
Related Products
Need a different quantity? See our Pack of 50, or browse the full Accessories range. Learn more about self-tapping screws.
FAQ
Do I need to pre-drill? Not for most timber substrates — the self-tapping thread cuts its own path. For hard timber species, a pilot hole is recommended to prevent splitting.
Are 20 screws enough for a full panel installation? A single acoustic wall panel typically requires 6–10 screws. A pack of 20 suits approximately 2–3 panels.
NZ delivery? Yes, shipped to all NZ addresses from Kynora Decor.
Reviews
There are no reviews yet.