Spring Pin System of Measurement Metric Pin Diameter 3 mm Pin Type Coiled Material Steel Material Grade/Class Grade 1070/Grade 1074 Finish Plain Usable Length 12 mm End Type Chamfered Chamfer Diameter 2.4 mm Fits Minimum Hole Diameter 2.99 mm Fits Maximum Hole Diameter 3.1 mm Shank Length 12 mm Maximum Chamfer Length 0.7 mm Nominal Diameter 3 mm Standards AISI 1070 - 1080 Shank Length Tolerance +/-0.250 mm Product Type Coiled Spring Pin Rockwell Hardness RC43-52