Spring Pin System of Measurement Inch Pin Diameter 21/64 in Pin Type Slotted Material Stainless Steel Material Grade/Class 18-8 Finish Plain Usable Length 3/4 in End Type Chamfered Chamfer Diameter 0.306 in Wall Thickness 0.062 in Fits Minimum Hole Diameter 5/16 in Fits Maximum Hole Diameter 5/16 in Shank Length 3/4 in Maximum Chamfer Length 0.08 in Minimum Chamfer Length 0.014 in Nominal Diameter 5/16 in Standards ASME B18.8.2 Shank Length Tolerance +/-0.015 in