Spring Pin System of Measurement Inch Pin Diameter 1/2 in Pin Type Slotted Material Steel Material Grade/Class Ungraded Finish Zinc Plated Usable Length 1 1/4 in End Type Chamfered Chamfer Diameter 0.485 in Wall Thickness 0.094 in Fits Minimum Hole Diameter 1/2 in Fits Maximum Hole Diameter 33/64 in Shank Length 1 1/4 in Maximum Chamfer Length 0.11 in Minimum Chamfer Length 0.025 in Nominal Diameter 1/2 in Standards ASME B18.8.2 Product Type Spring Pin