Dromet PSRe M8x90/20 expansion ring anchor, galvanised
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Description
Dromet PSRe M8x90/20 galvanised ring expansion anchor for concrete
Dromet PSRe M8x90/20 ring expansion anchor is a proven solution for permanently fixing structures into concrete substrates. Designed for the professional installation of profiles, metal structures, mesh gratings, handrails, machinery and other equipment on site. Thanks to its European Technical Approval ETA 05/0242, CE certificate and national approval AT-15-7574/2008, it guarantees compliance with building standards and full design accountability.

Design and material
The PSRe anchor features a ring-shaped design that ensures uniform expansion within the mounting hole and high anchoring load capacity. Made from structural steel with anti-corrosion protection in the form of electrolytic zinc plating. Supplied with a nut and washer — the anchor is ready for immediate installation without the need to purchase additional components.
Application
The anchor is designed for fixing into non-cracked concrete of at least class B20 (C16/20), dense natural stone and solid brick. Ideal for installing support structures for photovoltaic panels, mounting rails, fixing balustrade posts, foundation work for equipment, and any connections requiring high load capacity and certification.

Dimensions and technical parameters
- Designation: PSRe 8x90/20
- Thread: M8
- Drilling diameter (fi): 8 mm
- Overall length (L): 90 mm
- Thickness of fixed element (E): 20 mm
- Anchoring depth (F): 65 mm
- Hole depth (D): 100 mm
- Material: structural steel, electrolytic zinc plating
- Design: ring-type with nut and washer
- Weight: 0.034 kg
- EAN: 5907518688612
- Sales unit: piece
Dimension markings on the diagram: M — thread, E — thickness of the fixed element (protruding part), F — anchoring depth, L — overall length of the anchor, D — depth of the hole in the concrete, H — diameter of the mounting hole.
Certificates and approvals
- European Technical Approval: ETA 05/0242
- Certificate: CE
- National technical approval: AT-15-7574/2008
Installation recommendations
The mounting hole should be drilled perpendicular to the surface of the substrate and thoroughly cleaned of drilling dust. The fastener should be able to be inserted into the hole with light hammer taps. Installation should be carried out using a torque wrench — this ensures the correct tightening torque and proper expansion of the anchor. Once the fastener has expanded, the washer under the nut should be firmly pressed against the fixed element. The parameters specified in Technical Approval AT-15-7574/2008 must not be exceeded.
Technical data
| Thread type | M8 |
| Length [mm] | 90 |