Joint Connector Bolts BZP – M6 x 30mm – Forest of Dean Fasteners
Pack of 4 Each) M8 Joint Fixing Furniture Connector Bolts for Bed COT BUNK Desk ++ Including 8 x 16mm Flat Cap Nuts (M8 x 35mm) : Amazon.co.uk: DIY & Tools
M5.5 Joint connector bolt (L)33mm (Dia)7.8mm, Pack of 4 | DIY at B&Q