Description

Cross-headed self-tapping screw with underhead serration for aluminium | A4 stainless steel, pickled, passivated | 2 x slide-coated | 5.5 x 20 | With underhead serration (prevents spinning when screwing in), without sealing washer (especially for screwing trapezoidal sheet metal rails to top-hat rails in façades and for additional securing of wind deflector panels on aerodynamic south-facing racks) | PU 200 pcs.