I am clearing out many years of leftover materials from when I was working as a millwright. These 10 taper pins are still in the original sealed package but there must have been some moisture in the package because there is some surface rust on the pins. The label is marked 1 PK, 10 each, Taper Pin, #7 x 4, Steel, Stanlok, Worcester, MA 01613, Made in the USA, 3-29-04. These measure .409 to .326 and Grainger sells a pack of 10 for $24.25.