SPAX - Safety, quality and reliability since 1967. The branded product in the characteristic green packaging – produced at home in Germany and exported from there to all over the world: clever minds in Ennepetal constantly develop new ideas, expand the product range and establish the highest quality for DIY enthusiasts, professional processors, planners and architects all over the world. - Use: Universal indoors. Spax-exclusive Wirox surface: higher corrosion protection compared to conventional bare zinc plating than required by standard - overlying semi-circular head with flush tightening surface. Suitable for thin fittings with through hole. Optimum power transmission and clean fit even when processing overhead with SPAX bit T-Star plus T20 with guide pins. Effortless work and longer battery life: no pre-drilling (depending on wood). Easy penetration, reduction of the splitting effect thanks to 4CUT: Four edges in the screw tip. Easier cutting of the wood fibre thanks to Spax wave profile - Made in Germany. Approved for building inspection: European Technical approval for screws as wood fasteners in load-bearing wooden constructions (ETA-12/0114) - Box contents: 1 SPAX box, 200 pieces universal screw, T-Star plus, round head, fully threaded, 4CUT, WIROX surface, thread diameter (Ød1) = 4 mm x total length (Ls) = 16 mm, fully threaded length. (LgV) = (Lg15 mm, head diameter (Ødk): 8 mm, bit not included