Aka Guide Pins
Leader pins assure that the “A” and “B” halves of the mold correctly align while the mold closes. Also, they protect the mold from damage (offset pin) caused when the halves are closed when incorrectly oriented.
Typically located in the four corners of the mold, on the parting line. Note: the offset pin assures that the mold will not close incorrectly.
Page 4 of 17