No. A self-drilling screw (e.g., DIN 7504 with a drill point, not "K") has a drill bit tip. The DIN 7504 K requires a pre-made hole; it only forms the thread, it does not drill the hole.
As of this writing, the DIN 7504 standard has been partially withdrawn or superseded by ISO standards (specifically ISO 1478 for thread-forming screw threads and ISO 2702 for mechanical properties). However, the "K" point geometry is still widely referenced in technical drawings and industry norms.
The PDF contains precise tables detailing:
| Nominal Thread (M) | Pitch (mm) | Point Diameter (dp) min | Point Length (lp) min | |--------------------|------------|------------------------|-----------------------| | M2 | 0.4 | 1.20 | 2.0 | | M3 | 0.5 | 1.90 | 2.8 | | M4 | 0.7 | 2.60 | 3.6 | | M5 | 0.8 | 3.20 | 4.4 | | M6 | 1.0 | 3.90 | 5.2 | | M8 | 1.25 | 5.40 | 6.8 | | M10 | 1.5 | 6.80 | 8.5 | din 7504 k standard pdf
(Note: The above is a summary. The official PDF contains full tolerance classes.)
You cannot legally download the full copyrighted standard for free from official sources. However, you can view summary tables in manufacturer catalogs. For legal compliance, purchase the PDF from DIN Media.
The DIN 7504 K standard PDF is not just a set of drawings; it includes application advice. To achieve optimal performance: | Nominal Thread (M) | Pitch (mm) |
Look for a smooth, tapered cone at the tip (no flutes, no drill flutes). The cone length is roughly 1.5 to 2 times the thread pitch. There is no cutting edge.
Always verify the core hole diameter specified in the standard. Too small = breakage; too large = thread stripping. The 2016 edition provides updated formulas for hole sizes based on material thickness and strength.
Need the PDF for engineering or quality system compliance? Purchase it directly from DIN Media or Beuth. For day-to-day reference, most fastener manufacturers (e.g., Würth, Bossard, SFS) provide summarized dimension tables under license. DIN 7504-K specifies the technical requirements for hexagon
DIN 7504-K specifies the technical requirements for hexagon head self-drilling screws with a collar www.indexfix.com
. These fasteners are designed to drill their own pilot hole, form a mating thread, and complete the fastening in a single operation, eliminating the need for pre-drilling in metal substrates Bugel Алматы Core Technical Specifications According to the DIN 7504 Standard , the "K" designation specifically refers to the Hexagon Head with Washer/Collar Specification Details Common Diameters ST3.5, ST3.9, ST4.2, ST4.8, ST5.5, ST6.3 Dega Demir ve Galvaniz Sanayi A.Ş. Head Style External hexagon with a fixed flange (collar)
Case-hardened steel (C1018-C1022) or Stainless Steel (A2/A4) Surface Hardness Minimum 500–600 HV (Vickers Hardness) Core Hardness 240–450 HV Typically Zinc-plated (Blue/White) for corrosion resistance Equivalent Standards ISO 15480, UNI 8117 K Dimensions and Capacity (Metric) Detailed measurements for common sizes are outlined in the DIN 7504-K Data Sheet celopim.com : Head height ( ) ~4.1 mm; Washer diameter ( ) ~8.8 mm; Max drilling capacity: 3.0 mm. : Head height ( ) ~4.3 mm; Washer diameter ( ) ~10.5 mm; Max drilling capacity: 4.4 mm. : Head height ( ) ~5.4 mm; Washer diameter ( ) ~11.0 mm; Max drilling capacity: 5.25 mm. : Head height ( ) ~5.9 mm; Washer diameter ( ) ~13.2 mm; Max drilling capacity: 6.0 mm. Key Performance & Installation Screw DIN-7504-K - INDEX A Perfect Fixing