Looking for a nut for pieces to swivel around? : r/DIYUK
Raogoodcx 100Pcs M6 Barrel Nuts Bolts(6mm x 40mm, 6mm x 50mm, 6mm x 60mm, 6mm x 70mm, 6mm x 80mm) Hex Socket Cap Screw Bolts and Philips-Slotted Drive Barrel Nuts Assortment Kit :
Zoo Hardware Barrel Bolt
Chrome-plated Brass Barrel Door bolt N234 (L)50mm (W)25mm | Tradepoint