Safety Pin System of Measurement Inch Wire Diameter 0.12 in Shank Length 2 3/4 in Pin Diameter 1/4 in Pin Type Tab Lock Material Steel Material Grade/Class Grade 1010 Finish Zinc Plated Outside Diameter Tolerance +0.240/-0.250 in Shank Length Tolerance +0.020/-0.000 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