ESSVE HDS terrace board screws A2 are designed for concealed installation of pressure impregnated wood decking materials. Screws are screwed from the side of the liner using a special cap and assembly tool. The screws are made of stainless steel A2. On the floor, the thread at the tip reduces cracking and screw-in torque. Beneath the head is a thread that presses tightly against the load-bearing frame. The conical head fits well into the inlet. Designed for TX nozzle. The screws meet the CE requirements EN14592.InstallationTerrace board screws 4.8 x 60 mm are designed for boards of the following thickness: 25 - 34 mm and max. width 145 mm, use a mounting tool for boards 110 - 150 mm wide.Recommended speed: approx. 400 - 1200 rpm