p two bases together with Screws Minimum Distance between the Bolts is 50mm Maximum Distance between the Bolts is 75mm Nickle Plated Bars with Nickle Plated Bolts Bolt- M8x 20mm Insert – M8 x 23mm Robust Fittings to Ensure Strong Hold of the Bed Bases Standard Size which Fits Most Bases Link bar – Length 98 mm x Width 24 mm Depth 2 mm