CE compliant – Regulation (EU) No. 305/2011
Standard: DIN EN ISO 13918 – Type PD-DUO
Combined material: Steel 4.8 welding tip + stainless steel threaded section
Cold-rolled thread: Tolerance 6g
Partial thread: Optimised welding section with flexible threaded length
Product description – PD-DUO
The BEARFIX® PD-DUO bimetallic threaded stud is designed for drawn arc stud welding with ceramic ferrule and combines a weldable steel 4.8 tip with a corrosion-resistant stainless steel threaded section.
The partial thread leaves a plain section at the welding tip. The diameter of this section corresponds approximately to the thread pitch diameter, producing a weld bead about 3–4 mm larger than the external thread diameter.
This design offers a strong welding area while allowing the threaded length to be adapted to the application.
📌 Availability: This product is supplied on request. Please ask about lead times and minimum quantities.
Main applications
- Marine and offshore construction
- Chemical and wastewater plants
- Food and pharmaceutical industries
- Aggressive environments
- Carbon-steel structures requiring corrosion-resistant threaded fastening
- Applications requiring customised thread length
Technical advantages
- Bimetallic design
- Cost efficiency
- Optimised partial thread
- Flexible plain/threaded length
- Cold-rolled thread
- Excellent weldability
Available material combinations
- Steel 4.8 tip + stainless steel 1.4571 threaded section
- Steel 4.8 tip + A2-50 stainless steel threaded section
Dimensions and availability
PD-DUO studs are manufactured to suit the required thread, total length and plain-section length. The dimensional ranges follow the PD stud concept and are confirmed at the time of quotation.
✔ Supplied on request. ✔ Other threads, lengths and configurations can be manufactured according to application requirements.
Standards and certificates
- CE marking according to Regulation (EU) No. 305/2011
- DIN EN ISO 13918 – Type PD-DUO
- DIN EN ISO 14555 – Stud welding
- DIN EN 10204 inspection certificates on request
Return to Bimetallic Threaded Studs.