ZERO Stainless Steel Flat Threshold - Z544ST

Aluminium thresholds are generally suitable for use on external doors. However in particularly harsh environments it may be decided to use stainless steel thresholds. These are manufactured from 3mm thick Grade 304 stainless steel, and available in three patterns. Lengths: 1000mm and 2100mm drilled for CSK screws.

FIRE - These three stainless steel thresholds have been assessed by Exova Warringtonfire for use on previously fire tested (or assessed by Exova Warringtonfire or Chiltern International Fire) insulated and uninsulated steel-based doorsets which have achieved up to 240 minutes integrity, and where appropriate insulation, in accordance with BS EN 1634-1:2014, without detracting from the overall performance of the doorset. The doorset may be of single-leaf or double-leaf configuration. Copy of WF Assessment Report No. 387313 Issue 3 dated 31.08.2017 available on request.

CAUTION - These are not grooved and may become slippery in wet conditions.