Our M6 120mm Long Coarse thread furniture connector bolts can be used with a variety of applications including Bunk Beds Cots and Cabinets.They are produced from Steel and finished in Yellow Zinc Plating Brass Colour.The Diameter of the head is 15mm.The head of the bolts has a 4mm Hex Drive Allen Key Socket. Manufactured from steel - yellow zinc plated. Set Consists Of 4 Pieces. Ideal for bunk beds, beds, cots and furniture assembly.