Fast One-Step Installation
The drill-point tip drills, taps, and fastens in a single operation, eliminating the need for pre-drilling and significantly improving installation efficiency.
DIN 7504K
Hexagon Head Drilling Screws With Tapping Screw Thread With Collar
- Standard: DIN 7504K- 1995
- Material: SUS304, SUS316, SUS410, Carbon Steel
- Size: ST2.9 – ST6.3
- Surface Treatment: Plain, Zinc Plated, HDG, Dacromet, Ruspert
- Thread Type: Self-Drilling Thread
- Min Order: 5000pcs
- Sample: Free sample (after quote)
- Delivery time: 30 Days
Product Overview
Product Application
DIN 7504K refers to hex-head self-drilling, self-tapping screws with a flange.
These screws feature an integrated drill point, allowing them to drill, tap, and fasten directly into metal or wood without the need for a pre-drilled hole.
The corresponding current international standard is ISO 15480.
Draw
Specification
Typical application scenarios
- Metal structural connections: In the installation of color-coated steel roofing, roofs, and steel-framed exterior walls, they are frequently used in conjunction with EPDM rubber waterproof washers to ensure leak-proofing, vibration damping, and secure fastening.
- Metal-to-wood fastening: Used to directly secure wood panels or plastic materials to metal framing members.
Product Advantages
Strong and Secure Fastening
The hex washer head provides high torque transmission and a larger bearing surface, ensuring a stable connection with excellent pull-out resistance.
Reliable Outdoor Performance
Compatible with EPDM bonded washers to deliver effective waterproof sealing, vibration resistance, and long-term durability in outdoor environments.
Common Questions
How thick a steel sheet can a DIN 7504K screw drill through?
Depending on the screw diameter and drill-point design, DIN 7504K screws can typically drill through steel sheets from 2 mm to 6 mm thick.
Do DIN 7504K screws require pre-drilling?
No. The drill-point tip eliminates the need for pre-drilling, reducing installation time and labor costs.
How tight should DIN 7504K screws be installed?
Tighten until the washer is fully seated. Over-tightening may damage the EPDM washer and compromise waterproof performance.
How do I select the correct screw length?
The screw should fully penetrate all connected materials and extend at least 3 threads beyond the backside of the base material.
