IFI-138

STRAIGHTNESS GAGING METHOD AND STRAIGHTNESS LIMITS FOR MACHINE, TAPPING, AND THREAD ROLLING SCREWS

English 2002
0.000
IFI
Detailed Information

This standard establishes a method for inspecting the out-of-straightness limits for machine, tapping, and thread rolling screws. Included are screws fully threaded or with thread lengths of at least 4D and screw lengths to and including 12 inches (D equals nominal screw diameter). For screws with longer lengths and/or with shorter thread lengths, straightness limits shall be as agreed upon between manufacturer and purchaser. Also, included is a recommended sleeve gage inspection technique along
with a referee gaging procedure for determining conformance of products to specified out-of-straightness limits.

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