The Dynamo Expansion Bolt is a stainless steel wedge-type anchor ideal for medium to high hardness rocks like sandstone. With a 12mm diameter and 95mm recommended bore length, it offers robust outdoor durability, though its not marine grade. Ensure compatibility with base rock strength; avoid soft rocks like limestone. Not suited for coastal areas; contact us for custom marine-grade options. Tested to meet EN 959:2007 standards, this bolt ensures a minimum breaking strength of 25kN, providing reliable and secure anchorage for your projects.