Description :

STEEL AND ALUMINUM

Special self-perforating timber-metal tip geometry that reduces the possibility of breakage. The concealed cylindrical head ensures an optimal visual appearance and meets fire-resistance requisites.

INCREASED DIAMETER

The diameter of 7,5 mm ensures a shear strength of over 15 % and enables the optimisation of the number of fasteners.

DOUBLE THREAD

The thread close to the tip (b1) facilitates screwing. The longer under-head thread (b2) allows quick and precise closing of the joint.