Environment and its affects on the selection of an anchor/fixing

In our latest soundout episode our fixings/anchor expert Steve Grkinic discusses the role the environment plays when selecting an anchor/fixing.  

When considering the environment we need to answer the following questions; 

  1. Will the anchor be installed internally? 
  2. Will the anchor be installed in humid conditions? 
  3. Will the anchor be installed outside/external?  
  4. Will the anchor be installed near the coast? 
  5. Are there any special conditions which need considering? 

Most internal applications will be zinc plated. For certain applications, for example, in a multi-story car park once we remove the walls the environment is altered. Certain applications such as swimming pools need very careful consideration as the chlorinated environment can induce stress corrosion cracking in some grades of stainless steel.

Corrosion categorisation

Different types of environments and how the anchor/fixing selection is impacted by them.

The table below indicates the appropriate materials for these environments where the fixture is in all cases suited to the anchor.

The impact of environment on anchor selection
The impact of environment on anchor selection   Source: Construction Fixing Association (CFA)

*Please be aware in each of these cases we are presuming the application condition is normal before installation. 

Overall, the environment is a very important factor to consider when selecting an anchor. 

Further reading 

The CFA (Construction Fixing Association) is a trusted body that provides useful guides around the BS 8539 to help inform the construction industry.  

For complete guidance on the BS 8539 visit our comprehensive guide 

Discover our comprehensive range of ETA approved ceiling anchors, throughbolts, and thread-cutting anchors. We also supply a wide range of shieldsleeveheavy-duty and chemical anchors available for next day delivery. 

If you are looking for further resources such as toolbox talks then head over to the Construction Fixing Association website (CFA)  

Need help finding the right product? 

Call the sales team on 0115 922 1585 or email: sales@midfix.co.uk for specialist advice. 

Alternatively, you can directly message me any questions or queries via LinkedIn.

MIDFIX Guide to a compliant BS 8539 Fixing Installation
MIDFIX Guide to a compliant BS 8539 Fixing Installation

Further reading:

BS 8539:2012 guide Installation Training