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Whether you require a like bimetal or zinc-plated carbon steel?
A useful feature of the DIN 7504 K standard is its detailed specification of the , which helps users select the correct screw for specific material thicknesses. Key Features of DIN 7504 K
Common nominal sizes include ST 2.9, ST 3.5, ST 4.2, ST 4.8, ST 5.5, and ST 6.3.
Never attempt to drill through a steel plate thicker than the length of the screw’s unthreaded drill point, or the threads will catch prematurely and snap the fastener. Finding and Downloading a DIN 7504 K Standard PDF din 7504 k standard pdf
Available in corrosion-resistant stainless steel for outdoor or harsh environment applications. Equivalent Standards
If the thickness of the substrate exceeds the length of the unthreaded drill point (
If you need to access the full text of the DIN 7504 K standard, you can download it from the DIN website or purchase a PDF copy from a reputable standards distributor. Whether you require a like bimetal or zinc-plated
While the full dimensional table requires reference to the official standard documentation, typical nominal diameters range from M2 to M10. The standard dictates strict tolerances for:
The performance of a DIN 7504 K screw depends heavily on its material composition and surface treatment. Material Types
Technical Analysis and Application Scope of DIN 7504 K: Self-Tapping Thread-Forming Screws for Thermoplastics Never attempt to drill through a steel plate
The standard includes several annexes:
The DIN 7504 K standard PDF typically includes the following sections:
| Nominal Size (d) | Thread Pitch (P) | Head Height (k) | Width Across Flats (s) | Drill Bit Diameter (dp) | Max. Sheet Thickness | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | ST 3.5 | 1.3 mm | 3.0 - 3.4 mm | 5.5 mm | 2.8 mm | up to 2.25 mm | | ST 3.9 | 1.3 mm | 3.0 - 3.4 mm | 5.5 mm | 3.1 mm | up to 1.75 - 3.0 mm | | ST 4.2 | 1.4 mm | 3.6 - 4.1 mm | 7.0 mm | 3.6 mm | up to 3.0 mm | | ST 4.8 | 1.6 mm | 3.8 - 4.3 mm | 8.0 mm | 4.1 mm | up to 4.4 mm | | ST 5.5 | 1.8 mm | 4.8 - 5.4 mm | 8.0 mm | 4.8 mm | up to 4.8 mm | | ST 6.3 | 1.8 mm | 5.3 - 5.9 mm | 10.0 mm | 5.8 mm | up to 6.0 mm |
