Stainless steel AISI 316L bolt, ideal for use in caving, climbing and mountaineering anchors.
Requires hard compact rock (limestone, granite, dolomite).
The expanding collar is a new design and has greatly improved on the previous version.
The design phase focused on creating a technology which ensures expansion on an increased number of surfaces.
Attention: On particularly soft rocks (such as sandstone) expansion bolts are not recommended due to the unreliable nature of the supporting material.
In these circumstances we recommend the use of fixed resin anchors (epoxy glue resin)
Very popular in the creation of ground-up routes.
Short type (M10x66) with one expanding collar.
The material used in the majority of Raumer anchors is now stainless steel AISI 316L, which offers a higher resistance to marine corrosion than the former AISI 304.
To highlight this change each article is stamped with the relevant symbols.
However, certain bolts have not been branded as once in place, the symbols would be invisible.
Instead, a small circular collar has been added (see photo above) to mark the difference between the two metals.
This allows verification of the type of bolt used at any time.
66mm x Ø10mm