A excellent quality replacement set of bunk bed bolts and square block nuts which are suitable for use on all STANDARD UK BEDS, These have been procured and inspected to ensure the highest quality, and have been manufactured with a bright zinc coating to prevent rust. These fasteners are widely used in the assembly of beds, cots and flat pack furniture, and are suitable for use on all standard models available in the UK. The bolts have a M8 Metric Coarse Thread (8mm diameter), a 5mm allen key slot, and are available in the following lengths 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm and 110mm These square nuts will fit into slots which measure 10mm2 (10mm x 10mm), and have an internal M8 metric coarse thread (8mm diameter) If you are unsure whether this is the right product for.