Installation screws FOS CTD YZP

The fischer FOS installation screw with precision countersunk head has been specially developed for flush screw connections in OSB and coarse chipboard. The head and thread shape are optimally matched to the characteristic structure of OSB material and enable clean, low-splinter countersinking. The internal star TX drive offers maximum power transmission with maximum bit stability. The double thread ensures fast feed, secure hold, and firm tightening of the boards – for resilient, permanently stable floor and wall structures.