Ring anchors
in category: Ring anchors
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Ring anchors: expansion anchors for concrete, stone and brick
Ring anchors are mechanical expansion fasteners for permanent fixings in non-cracked concrete, natural stone and solid brick. This category covers galvanised structural steel anchors in thread sizes M6 to M20. They suit installers and builders who fix profiles, railings, gratings, metal structures and machinery to solid substrates.
What you will find in this category
- Galvanised ring anchors - Dromet PSRe expansion anchors in structural steel with electrolytic zinc coating, for solid substrates.
- Thread sizes: M6, M8, M10, M12, M14, M16 and M20.
- Lengths from 60 mm to 280 mm, with a different anchoring depth for each version.
- Many versions are supplied with nut and washer.
How to choose
- Thread size: match M6 to M20 to the fixture and the load. The drilling diameter in the product data matches the thread, for example ø10 mm for M10.
- Length and anchoring depth: depth varies by version, from 55 mm on M6x70 to 158 mm on M16x280/158. Check the depth against your substrate.
- Fixture thickness: the last number in the product name usually gives the thickness of the fixed element, for example 45 mm on M8x115/45.
- Base material: the anchors are intended for non-cracked concrete min. B20, natural stone and solid brick.
- Finish and documents: structural steel with electrolytic zinc coating. Many product pages list ETA 05/0242 and CE, so check the individual product.
Typical applications
These anchors are used to fix mounting profiles, metal structures, handrails, railings, balustrades, gratings and machinery. They also suit profiles and structures for photovoltaic installations. The ring design spreads stress evenly within the anchoring zone. The zinc coating protects against corrosion under standard operating conditions.
Frequently asked questions
Which base materials are these anchors for?
They are intended for non-cracked concrete min. B20, natural stone and solid brick. Check the product page for the base material of the version you choose.
Are nut and washer included?
Many versions are supplied with a nut and washer. This is stated in the product description, so check it for the specific size.
What does the last number in the product name mean?
On many versions it is the thickness of the fixed element in mm. M8x115/45, for example, lists a 45 mm fixture thickness and a 65 mm anchoring depth.
Not sure which size or length fits your substrate? Contact technical support and we will help you choose.