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Construction wood screw Koelner TS-4050 4×50 mm countersunk head TX drive
Summary description:
Koelner TS-4050 is a construction screw for wood with dimensions 4×50 mm, countersunk (conical) head and TX (Torx) drive. Designed for fastening wood elements and frames, it provides straightforward installation with a Torx driver and a flush finish due to the countersunk head. Suitable for structural joins, carpentry and general woodworking applications.