fastener collage. horizontal long banner with row of bolts with red sealing, crews, rivet nuts, metal details. close up. modern

air airtight background black bolt bolted bow box carving clinch closure collage collar connection copy detail embossment enclosure engineering fastener grange grey guard hard hardness high horizontal imagery industry inner inside internal left metal nut oblong pack ring riv rivet rivnut rustic screw scrimshaw space span surface texture thread top view