A Guide to DIN 7504 K: The Self-Drilling Standard for Metalwork
The most common material. It offers high tensile strength and a hardened tip capable of drilling through structural steel.
According to technical specifications, DIN 7504 K screws are available in various diameters (ST) and lengths, commonly produced in case-hardened steel (560 HV) or stainless steel. Key Dimensions Table
For high strength. These are often zinc-plated (blue or white) for moderate corrosion resistance. din 7504 k standard pdf
The DIN 7504 K defines the technical specifications for self-drilling screws with a hexagon head, designed primarily for quick installation into steel profiles, roofing, and general industrial applications. The "K" denotes the hexagonal head shape, typically including a built-in flange (stamped washer) to distribute clamping force over a wider surface area.
First, a crucial clarification: refers specifically to self-tapping screws for metric ISO threads in materials like steel, non-ferrous metals, and die-cast alloys. The “-K” denotes a point with a thread-cutting slot or flute (chip breaker), which distinguishes it from forming screws.
While I cannot provide the copyrighted official DIN document, you can find the technical specifications in several reputable databases by searching for: "DIN 7504 K Bossard" "ISO 15480 standard pdf" (The international equivalent) A Guide to DIN 7504 K: The Self-Drilling
In modern construction and industrial assembly, efficiency and reliability are paramount. The standard defines one of the most popular types of fasteners used for this purpose: the self-drilling screw with a hexagonal head and a washer. These screws are engineered to drill, tap, and fasten in a single operation, reducing assembly time and labor costs.
When looking for the document, use keywords like "DIN 7504-K PDF download," "DIN 7504-K technical specifications," or "ISO 15480 standard pdf." Summary of DIN 7504 K Specifications Specification DIN 7504 K / ISO 15480 Type Self-Drilling Hex Washer Head Material Case-Hardened Steel Typical Hardness Finish Zinc Plated (Blue/White) Common Sizes ST2.9 - ST6.3
The standard specifies requirements for self-drilling tapping screws with a hexagon head and collar (flange) . These screws are designed to drill their own pilot hole and form their own mating threads in a single operation, eliminating the need for pre-drilling in materials like sheet metal or heavy profiles. Key Technical Specifications Key Dimensions Table For high strength
The DIN 7504 K standard defines the drilling capacity based on the screw diameter. Each size has a maximum recommended total sheet thickness it can pierce.
DIN 7504 K is a German standard that specifies the requirements for self-tapping screws with a hexagon head and a tapping screw thread. These screws are commonly used in various industries, including construction, automotive, and electronics, for assembling two or more materials, such as metal sheets or plastics. In this blog post, we'll provide an overview of the DIN 7504 K standard, its significance, and the key specifications to help you choose the right self-tapping screws for your projects.