Product Description
No.12 5.5mm A4 Stainless Steel Countersunk Pozi Self Tapping Screws – DIN 7982
No.12 countersunk Pozi self tapping screws manufactured from A4 marine grade stainless steel. Available in 5.5mm diameter x 25mm overall length, these screws provide a corrosion-resistant fastening for suitable pre-drilled materials.
The countersunk head sits flush with the surface when installed in a matching countersink. A PZ3 Pozidriv screwdriver or bit provides the correct drive fit.
Technical Specifications
| Screw gauge | No.12 |
|---|---|
| Nominal thread diameter | 5.5mm – ST5.5 |
| Length | 25mm |
| Material | A4 marine grade stainless steel |
| Head style | Flat countersunk |
| Drive type | Pozi / Pozidriv |
| Drive size | PZ3 |
| Head diameter | 10.37–10.80mm |
| Maximum head height | 3.40mm |
| Thread type | Self tapping |
| Point style | Pointed AB / Form C |
| Dimensional standard | DIN 7982 |
| Length measurement | Overall length, including the countersunk head |
Available Size
No.12 – 5.5mm diameter x 25mm overall length, measured from the top of the countersunk head to the tip.
Key Features
- A4 stainless steel for enhanced corrosion resistance.
- Countersunk head for a flush finish in a prepared countersink.
- PZ3 Pozidriv drive.
- Pointed self tapping thread for suitable pre-drilled materials.
- Suitable for marine fittings, outdoor assemblies, maintenance and repair applications where A4 stainless steel is appropriate.
Selection and Installation
Prepare a pilot hole appropriate to the material type and thickness, together with a countersink that matches the screw head. Pilot hole requirements vary with the application.
Use a correctly fitting PZ3 screwdriver or bit and tighten carefully to avoid stripping the receiving material or damaging the drive recess. These screws require a prepared hole; they do not have a self-drilling point.
Pack Quantities
Available in quantities of 5, 10, 20, 50, 100, 250, 500 and 1,000. Select the required quantity from the options.
Standards and References
- DIN 7982 – cross-recessed countersunk head self tapping screws.
- Form C – pointed end.
- Recess type Z – Pozidriv drive.
