SECURITY Vrut jedocestný s vypouklou hlavou Nerezocel A251667
SECURITY Jednocestný samořezný šroub Ocel Pozinkované26910
SECURITY One-way countersunk head woodscrew Ocel Pozinkované25760
SECURITY Jednocestný samořezný šroub Nerezocel A251668
SECURITY Vrut s vypouklou hlavou a jednocestnou drážkou Nerezocel A251671
The special ridged design of this drive means that it can only operate in a clockwise motion. Installed using standard slotted screwdriver - no specialist tools required.