Coiled Spring Pin, 1/4 In. dia,2 1/2 In. L,Coiled,PK50, System of Measurement Inch, Pin Diameter 1/4 in, Pin Type Coiled, Material Steel, Material Grade/Class Grade 1070/Grade 1074, Finish Plain, Usable Length 2 1/2 in, End Type Chamfered, Chamfer Diameter 0.2429 in, Fits Minimum Hole Diameter 1/4 in, Fits Maximum Hole Diameter 1/4 in, Shank Length 2 1/2 in, Maximum Chamfer Length 0.065 in, Nominal Diameter 1/4 in, Standards ASME B18.8.2, Shank Length Tolerance +/-0.010 in