ISO-3161 › Historical Revision Information
Aerospace - Unj Threads - General Requirements & Limit Dimensions
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This International Standard specifies the general requirements and limit dimensions of inch series UNJ threads with controlled root radius for aerospace construction.
It determines the basic triangular profile for this type of thread and gives a system for designating the diameter and number of threads per inch combinations. For all diameters 0,060 in (1,524 mm) to 6,000 in (152,4 mm), it offers in the form of tables the basic dimensions and tolerances for a selection of diameter and number of threads per inch combinations. It also provides the method of calculation for the dimensions and tolerances for any diameter and number of threads per inch combination not given in the tables, including threads with a diameter in excess of 6,000 in.
To find similar documents by classification:
49.030.10 (Screw threads Screw threads for general use, see 21.040)
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Document Number
ISO 3161:1999
Revision Level
3RD EDITION
Status
Current
Publication Date
Dec. 1, 1999
Committee Number
ISO TC 20/SC 4