What You Need to Know About Leader Pins and Bushings
Mold Making Technology
NOVEMBER 8, 2022
They lead or guide one half of a mold into the other. The outer diameter of a leader pin is typically 0.0010 inch below nominal with a tolerance of +0.0000/-0.0005 inch. A leader pin bushing typically has an inside diameter of 0.0005 inch above nominal with a tolerance of +0.0005/-0.0000. The major categories of ANSI B4.1-1967-R1987
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