Din 7504 K Standard Pdf Jun 2026
The specialized tip drills through the sheet metal.
DIN 7504 is a widely used standard in the European Union and other countries for hexagon head bolts with metric fine pitch thread. The standard specifies the requirements for the design, dimensions, materials, and testing of these bolts.
The standard refers to self-drilling screws featuring a hexagonal head with a washer (often called a flange). These fasteners are engineered to drill their own holes, tap mating threads, and fasten materials in a single operation, making them highly efficient for metal-to-metal and metal-to-wood applications. This article provides a technical overview, dimensions, and material properties based on the DIN 7504 K specification (often cross-referenced with ISO 15480). What is the DIN 7504 K Standard?
: Common sizes include 5.5 mm (for ST 3.5) and 8 mm (for ST 4.8). din 7504 k standard pdf
Disclaimer: Specifications may vary slightly by manufacturer. Always consult an official DIN 7504 standard document from a certified provider for manufacturing purposes.
You will often see references to the family of standards, with each suffix letter denoting a different head style:
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What are you looking to drill into?
Many professionals confuse DIN 7504 K with other similar standards. Here is the differentiation:
Hydrogen embrittlement test procedures and core hardness metrics. The standard refers to self-drilling screws featuring a
Offers slightly better moisture resistance than clear zinc.
Always verify the 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.
To further enhance durability and performance, a variety of surface coatings are applied, including: