I had disassembled a shelving unit a few years back and needed to add one of its shelves to another such unit and needed a few couplings. There were an exact match to the original and hence worked great.
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Collapsible Shelf Brackets - Heavy Duty Metal Folding Bracket For Wall Mounted Bench, Table, Or Shelf, Space Saving Hinge Design, 2 Pack, Maximum Load Capacity Of 150 Pounds (14 Inch, Black)
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