Edsal Muscle Rack D Steel Post Coupling GREY (4 Pack) 4"H x 1.375"W x 1.375"D | eBay
Metal clips/coupling piece I think. What does it belong to? They were found stored with screws, nails, and similar things. I thought it might be for metal shelves but couldn't find something
Edsal CPOUT-Gry-4 Muscle Rack Post Coupling Outer Grey (4 Pack), 3" Height, 1.5" Width, 1.5" Length (Pack of 4): Amazon.com: Tools & Home Improvement
E-Boltless Racks | Boltless Storage Rack | Display Metal Rack
Wholesale 8 PCS 3/4" Shelving Connectors,Threaded Pole Connectors,Shelving Post Coupler for Extending Wire Rack Shelving : Home & Kitchen | Supply Leader — Wholesale Supply
Edsal Muscle Rack Steel Post Coupling BLACK 4"H x 1.375"W x 1.375"D - Redstag Supplies
5-Shelf Steel Shelving - HART Tools
UPC 035441044115 - 3 in. H x 1.5 in. W x 1.5 in. D Galvanized Steel Hidden Post Coupling (Pack of 4 | upcitemdb.com