group of universal nylon anchors for fixing in masonry on a white background

wall plug dowel fastener anchor attach white background isolated group professional quality insert set gray red rawlplug expansion lead plastic split-ribbed nylon strength tool anchoring equipment drilling hole hollow fixing fixation installation inside screw bolt nail masonry concrete material repair mechanic manual work home improvement diy design building construction industry civil engineering industrial nobody closeup top view universal conical high performance safe duo power fastening attachment mounting threaded rod whole object technology nopeople above