Protection triangle landing door unlocking screw M4x20

Protection triangle unlocking landing doors Screw M4x20. - INNOVATIVE SOLUTION, safe and SPECIAL ECONOMIC HLM. - 5 operations are necessary to protect access to the triangle of unlocking the lock . - 1 Mooring the screwdriver on the cap with a screw thread reversed. - 2 Using a scroll wheel above respects it deviates from the edge of the screwdriver and the cap is locked on the screwdriver becomes unremovable. - Filter 3 hole access triangles release and tighten cap after the operation n 2. - 4 Rotate the top of the screwdriver to release it. - 5 Free the screwdriver and do the inverse operations to access the unlocking triangle. - Diameters and dimensions of the bushings and screws secured on request. - Screw with oval head, bottelée, flat or 100106. - Authorized EEC. Former reference: 100401