M5 M6 M8 M10 HEX SOCKET FLANGED BUTTON HEAD SCREWS A2 STAINLESS STEEL ALLEN BOLT
These are an ISO 7380-2. Further details are as follows Thread Size - M8 (8mm). Thread Size - M6 (6mm). Thread Size - M5 (5mm). Dowel Pins & Lynch Pins. Thread Size - M10 (10mm). Head Depth including Flange - 2.75mm.