| Feature | Benefit | |---------|---------| | No pre-tapping | Saves 30-50% assembly time | | No cutting chips | Eliminates cleaning operations | | High strip-to-drive ratio | Reliable torque control | | Reusable (limited times) | Standard allows for 2-3 reuses |
Accessing the PDF
Industrial fastener distributors, such as Aspen Fasteners , often provide a summarized DIN 7504 specification sheet. din 7504 k standard pdf
If the thickness of the substrate exceeds the length of the unthreaded drill point (
The specifies the dimensional and technical requirements for hexagon head self-drilling screws with a collar (or flange) . Engineered to drastically cut down assembly times, these fasteners combine drilling, tapping, and fastening into a single operation, entirely eliminating the need for pre-drilled pilot holes. | Feature | Benefit | |---------|---------| | No
The following specifications are commonly found in technical data sheets for DIN 7504 K: : Hexagon head with an integrated washer/flange.
For highly corrosive environments, stainless steel options (such as A2 or A4 grades) are used. Because stainless steel is too soft to drill through heavy carbon steel, are engineered. They feature a stainless steel body welded to a hardened carbon steel drill point. Thread and Drilling Performance The following specifications are commonly found in technical
(Note: The above is a summary. The official PDF contains full tolerance classes.)
According to DIN 7504 K, these screws are typically made of or stainless steel , designed to handle the hardness of the base material. The standard defines the diameter of the thread ( ), head diameter ( ), head height ( ), and flange diameter. Key Dimensional Ranges Thread Sizes: Ranging from ST 3.5 to ST 6.3 .