Formula Symbols

Formulas given herein use the five symbols listed below:

D = minimum depth of thread or minimum thickness of part with restrained or fixed fastener F = maximum diameter of fastener (MMC limit) H = minimum diameter of clearance hole

(MMC limit) P = maximum thickness of part with clearance hole, or maximum projection of fastener, such as a stud T= positional tolerance diameter

Subscripts are used where more than one size feature or tolerance is involved.

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