do not unscrew sign, no repairing

abstract adjust allowed apart art ban bolt caution clip clipart construction cover danger demount design details disassemble disassembly dismantle donat dont electric electronics electroshock fix fixing flat forbidden hardware icon icons illustration installation instruments job logo logos maintenance mount nail need not open parts pictogram prohibited remove repair repairing safety screw screwdriver screwing service shock sign signs stop symbol symbols take tools turning unscrew use vector warning web work