Whether you require a like bimetal or zinc-plated carbon steel?
If you work with sheet metal, light-gauge steel, or die-cast components, you’ve likely encountered the need for a fastener that can tap its own thread without a separate tapping operation. That’s exactly where comes into play. din 7504 k standard pdf
The standard specifies requirements for hexagon head self-drilling tapping screws equipped with a flange or embossed washer . While the original DIN standard has been officially withdrawn, it remains widely used in the industry and corresponds directly to the international standard ISO 15480 . Technical Specifications Summary Whether you require a like bimetal or zinc-plated
Below is a summary of typical dimensions, with more detailed tables found in technical PDFs. Diameter ( Max (Washer) Max (Head Height) (A/F Socket) 9.5 - 25 mm ST 3.9 13 - 25 mm ST 4.2 13 - 50 mm ST 4.8 13 - 80 mm ST 5.5 16 - 80 mm ST 6.3 19 - 80 mm Important Notes on DIN 7504 K Specifications Diameter ( Max (Washer) Max (Head Height) (A/F Socket) 9
The is not just a set of drawings; it includes application advice. To achieve optimal performance:
Attaching metal components where pre-drilling is difficult.
Standard stainless steel (like A2 or A4) is generally too soft to drill through carbon steel plates. Therefore, premium applications use . These feature a welded carbon steel drilling point fused to an A2/A4 stainless steel body, combining high drilling performance with exceptional corrosion resistance. Surface Finishes