A set of 4 replacement tamperproof screws (M3.5 x 12mm) that are compatible with the entire Robust Range of Tamperproof thermostats and humidistats.
MSD-152 Tamperproof Screwdriver
Tamperproof screwdriver for MSD-153 tamperproof screws. Required to gain access into the entire Robust Range of Tamperproof thermostats and humidistats.
£17.50