Metric DIN 933 Hexagon Head Cap Screws / Bolts are externally threaded fasteners with a hexagonal washer faced head and a chamfered tip to facilitate mating with an internally threaded component. DIN 933 hex screws have a fully threaded shank and are manufactured to very strict tolerances. Aspen Fasteners offers one of the most complete ranges of metric screws, bolts and other inch and metric industrial fasteners for immediate delivery from stock. The following sizes of metric DIN 933 Hexagon Head Cap Screws / Bolts are available for immediate shipping from stock: Diameters ranging from M2 to M52 in A2 and marine grade A4 stainless steel as well as aluminum, brass nylon and steel.