Safety Pin System of Measurement Inch Wire Diameter 0.063 in Shank Length 3 in Pin Diameter 1/16 in Pin Type Safety Material Steel Material Grade/Class Grade 1065 Finish Zinc Plated Outside Diameter Tolerance +0.0645/-0.0605 in Shank Length Tolerance +0.000/-0.250 in Usable Length 2 1/2 in Product Type Safety Pin Wire Shape Square Wire Type Single Height 1/2 in Includes Not Applicable Material Quality Standards Not Applicable Dimensional Standards Not Applicable