5DU57 Spring Pin, System of Measurement Metric, Pin Diameter 3 mm, Pin Type Slotted, Material Steel, Material Grade/Class Grade 1070/Grade 1080, Finish Plain, Usable Length 20 mm, End Type Chamfered, Wall Thickness 0.6 mm, Fits Minimum Hole Diameter 3 mm, Fits Maximum Hole Diameter 3.1 mm, Shank Length 20 mm, Maximum Chamfer Length 0.5 mm, Minimum Chamfer Length 0.5 mm, Nominal Diameter 3 mm, Shank Length Tolerance +/-0.500 mm, Product Type Spring Pin, Rockwell Hardness HV 420-520