The DIN 7504 K standard specifies requirements for self-drilling tapping screws featuring a hexagon head with a flange (collar). This specialized fastener is designed to drill its own pilot hole, tap its own thread, and secure the connection in a single operation, primarily in metal-to-metal applications. Key Technical Specifications
The standard provides precise dimensions for various screw sizes, typically ranging from ST 3.5 to ST 6.3. DIN 7504-K self-drilling screw - Damesa
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
The DIN 7504 K 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 While the original DIN standard has been officially withdrawn, it remains widely used in the industry and corresponds directly to the international standard ISO 15480.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
The following data is compiled from representative technical reports and manufacturer data sheets: ISO-15480/DIN7504K Hexagon Washer Head Self-drilling Screws
Introduction
DIN 7504 is a German standard for screw and nut assemblies, specifically for K-series fasteners. The standard is published by the German Institute for Standardization (DIN) and is widely used in various industries, including construction, automotive, and engineering. In this feature, we will explore the DIN 7504 K standard PDF, its contents, and its significance.
What is DIN 7504 K standard?
The DIN 7504 K standard specifies the requirements for screw and nut assemblies with a coarse thread, used in various applications, such as construction, machinery, and automotive industries. The standard covers the dimensions, materials, and testing of these fasteners.
Contents of DIN 7504 K standard PDF
The DIN 7504 K standard PDF typically includes:
Significance of DIN 7504 K standard
The DIN 7504 K standard is significant for several reasons:
Industries that use DIN 7504 K standard
The DIN 7504 K standard is widely used in various industries, including:
How to obtain DIN 7504 K standard PDF
The DIN 7504 K standard PDF can be obtained from the German Institute for Standardization (DIN) or other authorized distributors. The standard is available in digital format, allowing users to easily access and download the document.
Conclusion
In conclusion, the DIN 7504 K standard PDF is an important document that specifies the requirements for screw and nut assemblies used in various industries. The standard ensures quality assurance, interchangeability, and safety, and is widely used in construction, automotive, and engineering applications. If you need to access the standard, you can obtain it from the DIN website or other authorized distributors.
The DIN 7504 K standard specifies the requirements for self-drilling tapping screws with hexagonal heads and collars. These fasteners are designed to drill their own pilot hole and form their own mating threads in a single operation, typically into metal sheets or other ductile materials. Technical Overview of DIN 7504 K
The "K" designation specifically refers to the hexagon head with a collar (also known as a flange). This design provides a larger bearing surface, which helps distribute the clamping force and prevents the screw head from sinking into or damaging thin materials. Key Specifications
Material: Usually manufactured from case-hardened steel to ensure the drilling point is hard enough to penetrate metal while the core remains ductile. Stainless steel (A2/A4) versions exist but often require a bimetal construction (carbon steel tip) to effectively drill through hard steel. Head Style: Hexagonal with an integrated flange (collar). Thread Type: Self-tapping thread (ST) as per ISO 1478.
Drilling Capacity: Varies by screw diameter; for example, a 4.8mm diameter screw can typically drill through steel up to 3–4mm thick. Common Dimensions Description Nominal Diameters Range from ST 2.9 to ST 6.3. Head Width (Across Flats)
Standard sizes like 5.5mm, 7mm, 8mm, and 10mm depending on diameter. Coating
Most commonly Zinc Plated (Galvanized) for corrosion resistance. Mechanical Properties din 7504 k standard pdf
Surface Hardness: Minimum 560 HV (Vickers hardness) to ensure the point can cut through steel.
Core Hardness: Usually 270–390 HV to maintain structural integrity and prevent brittleness.
Ductility: The standard requires the screw to withstand a specific twist angle without breaking, ensuring it can handle the torque applied during the drilling process. Applications
Metal Construction: Fixing roofing and cladding sheets to steel purlins. HVAC: Assembling ductwork and ventilation systems.
Automotive: Securing components where high vibration resistance and quick assembly are needed. Related Standards DIN 7504 P: Countersunk head (flat head). DIN 7504 N: Pan head. ISO 15480: The international equivalent to DIN 7504 K.
A Guide to DIN 7504 K: The Self-Drilling Standard for Metalwork
If you are in construction or heavy metal fabrication, you have likely encountered the term DIN 7504 K
. While it sounds like a technical serial number, it is actually one of the most reliable standards for self-drilling screws with a hexagonal head.
The primary advantage of a DIN 7504 K screw is its efficiency; it eliminates the need for pre-drilling pilot holes, allowing the fastener to drill, tap, and secure in one single motion. What is the DIN 7504 K Standard? DIN 7504 is the German standard (issued by Deutsches Institut für Normung ) that governs self-drilling tapping screws. The designation specifically refers to the head style: a hexagonal head with an integrated flange or collar. ISO Equivalent : The international equivalent is Key Features
: These screws typically feature a "drill point" tip capable of piercing sheet metal or heavy profiles up to several millimetres thick without prep. Technical Specifications & Dimensions According to manufacturers like INDEX A Perfect Fixing Aspen Fasteners , the standard covers a specific range of metric sizes: Nominal Diameter ( Head Thickness ( Spanner Size ( Max Drilling Capacity Data compiled from CELO Fixings Materials and Coatings
(Pack of 500 pcs) DIN 7504-K Zinc Plated Steel 4.8 x 60 mm Self-Drilling Screws With EPDM Washers, Hex Washer Head, Sheet Metal Screw, Self Tapping (5
Introduction
DIN 7504 K is a German standard that specifies the requirements for bolted connections with hexagon head bolts and nuts. The standard is part of the DIN 7504 series, which covers various types of bolted connections. The "K" in the standard designation indicates that it is a "verification" or "inspection" standard.
Scope of Application
The DIN 7504 K standard applies to bolted connections with hexagon head bolts and nuts that are used in various industries, including construction, mechanical engineering, and automotive engineering. The standard covers connections with bolts of diameters up to M48 and nuts of diameters up to M48.
Requirements
The DIN 7504 K standard specifies the following requirements for bolted connections:
Contents of the Standard
The DIN 7504 K standard typically includes the following contents:
Importance of the Standard
The DIN 7504 K standard is important for several reasons:
Availability of the Standard
The DIN 7504 K standard is available in PDF format from various sources, including:
Conclusion
The DIN 7504 K standard is an important standard for bolted connections with hexagon head bolts and nuts. The standard specifies requirements for design, materials, tightening, inspection, and testing. Its application helps ensure the safety, reliability, and interchangeability of bolted connections. The standard is available in PDF format from various sources.
No specific mathematical formulas or equations are included in this write-up; hence no special $$ syntax is used here. The DIN 7504 K standard specifies requirements for
DIN 7504 K specifies requirements for hexagon head self-drilling screws with a tapping screw thread and a flange (integral washer)
. These screws are designed to drill their own pilot hole, tap a mating thread, and fasten materials—typically metal to metal or metal to wood—in a single operation. www.indexfix.com Key Technical Specifications Head Style: External hexagon head with a built-in flange/collar. Comparable Standard: Often replaced by or compared to Material Options: Case-hardened steel (typically zinc-plated). Stainless Steel:
A2 or A4 grades, primarily used for fastening into aluminum or thin stainless sheets. Usually surface hardened to approximately to ensure drilling capability. www.indexfix.com Dimensions Table (Nominal Values)
The following dimensions are based on standard technical data sheets for DIN 7504 Type K: Bugel Алматы Screw DIN-7504-K - INDEX A Perfect Fixing
The DIN 7504 K 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
The following specifications are commonly found in technical data sheets for DIN 7504 K: Head Style: Hexagon head with an integrated washer/flange.
Material: Typically case-hardened steel (often zinc-plated) or stainless steel (A2/A4 grades).
ISO Equivalent: The modern international equivalent is ISO 15480. Dimensions: Diameters: Standard sizes range from ST 3.5 to ST 6.3.
Drilling Capacity: Varies by diameter, typically ranging from 2.0 mm (for ST 3.5) up to 6.0 mm (for ST 6.3). Dimensional Reference Table Metric DIN 7504 Self Drilling Screws - Aspen Fasteners
The DIN 7504 K standard specifies the requirements for self-drilling screws with a hexagonal head and an integrated collar or flange. These fasteners are widely used in construction, metalworking, and facade technology because they eliminate the need for pre-drilling by creating their own pilot hole and thread in a single operation. Key Specifications of DIN 7504 K
The "K" in DIN 7504 refers to the specific head style: a hexagon head with an embossed washer or flange. This design provides a larger bearing surface, which distributes the clamping force more evenly and reduces the risk of damaging the fastened material. Dimensional Details
DIN 7504 K screws are identified by their nominal diameter (ST) and total length. Common dimensions include: www.indexfix.comhttps://www.indexfix.com Screw DIN-7504-K - INDEX A Perfect Fixing
DIN 7504 K standard specifies requirements for hexagon head self-drilling screws
with a flange (also known as an embossed washer). These fasteners are designed to drill their own pilot hole, tap a thread, and fasten materials in a single operation, primarily for metal-to-metal or metal-to-wood applications. www.indexfix.com 1. Technical Specifications
The DIN 7504 K standard (often equated with the international ISO 15480 standard
) defines several critical dimensions for various thread sizes: Крепком Thread Size (d) Head Height (k max) Wrench Size (s) Washer Diameter (dc max) Max Drilling Capacity Data sourced from Celofixings Technical Data 2. Materials and Mechanical Properties Metric DIN 7504 Self Drilling Screws - Aspen Fasteners
Understanding the DIN 7504 K Standard: Specifications and Technical Data
The DIN 7504 K standard specifies the requirements for self-drilling tapping screws with a hexagonal head and an integrated flange (stamped washer). Often referred to as "Tek screws," these fasteners are engineered to drill, tap, and fasten in a single operation, eliminating the need for pre-drilled pilot holes in metal substrates.
While the German DIN standard remains widely used, it has been largely superseded by the international equivalent, ISO 15480. Technical Specifications and Dimensions
The DIN 7504 K standard covers a specific range of thread sizes and head dimensions to ensure mechanical reliability. 1. Dimensional Overview
The dimensions of these screws are critical for selecting the correct driver size and ensuring proper grip. Key metrics include:
Thread Sizes (d): Common sizes include ST 3.5, ST 4.2, ST 4.8, ST 5.5, and ST 6.3.
Width Across Flats (s): This determines the socket or wrench size needed. For example, ST 4.8 and ST 5.5 typically use an 8mm driver, while ST 6.3 uses a 10mm driver.
Head Height (k): Measured from the base of the flange to the top of the hex head.
Washer/Flange Diameter (dk): The integrated flange provides a larger bearing surface to distribute the load. Thread Size Width Across Flats (s) Head Height (k max) Washer Diameter (dk max) ST 3.5 ST 4.2 ST 4.8 ST 5.5 ST 6.3 Data compiled from various technical datasheets. 2. Drilling Capacity
The "drill point" (typically JP76 type) is designed to penetrate specific material thicknesses. Саморез DIN 7504 K - ЦКИ Scope and application : The standard defines the
DIN 7504-K is a German industrial standard that specifies graphical symbols and conventions for technical drawings, particularly relating to the representation of electrical and electronic components and connections. As part of the broader DIN family of standards, DIN 7504-K helps engineers, draftsmen, and technicians produce clear, unambiguous technical documents that can be interpreted consistently across companies and national borders.
Historical Context and Purpose
Scope and Key Content
Practical Benefits
Relation to Other Standards
Accessing the PDF
Limitations and Considerations
Conclusion DIN 7504-K plays an important role in standardizing the graphical language of electrical and electronic technical drawings, promoting clarity, interoperability, and reduced errors in engineering documentation. While official PDF copies are usually obtained through DIN or authorized distributors, the conventions it defines are widely reflected in CAD symbol libraries and engineering references that support everyday design work.
You're looking for information on the DIN 7504 K standard!
Unfortunately, I don't have direct access to copyrighted materials, including standards. However, I can provide some general information and guidance on the standard.
What is DIN 7504?
DIN 7504 is a German standard for "Self-tapping screws" (also known as "Tek screws" or "sheet metal screws"). The standard specifies the requirements for the design, testing, and quality of self-tapping screws.
What is the K version?
The "K" version likely refers to a specific part of the standard, possibly related to a particular type of screw or application.
Informative text
Here's some general information on the standard:
If you're looking for a specific PDF copy of the standard, I recommend:
Keep in mind that standards are subject to periodic updates, so ensure you're accessing the latest version.
Here’s a solid, informative post about the DIN 7504-K standard, written in a clear, professional tone suitable for a blog, LinkedIn, or technical update.
Title: Understanding DIN 7504-K: The Standard for Self-Tapping Screws for Metals
Post:
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 DIN 7504-K comes into play.
First, a crucial clarification: DIN 7504-K 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.
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 |
(Note: The above is a summary. The official PDF contains full tolerance classes.)
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.