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13 lut 2015 · Thread calculator: All calculated results are based on; Basic outside diameter, number of threads per inch, series designation and class tolerances. The algorithms used for this calculator are based on the "my" best interpretation of the ANSI/ASME B1.1-1989 specification.
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UNJF - Unified Fine Threads. UNJF Thread Series, is suitable for the production of bolts, screws, and nuts for aerospace applications where the Root Radius is controlled. External threads of this series have greater tensile stress area than comparable sizes of the Coarse series.
Advanced Thread Data. Allowance, Minimum and Maximum allowed values as defined by the thread standard for the selected class. Lead angle calculation according to the exact diameter and number of starts. Calculations for measurement of external thread diameters using the "Over Wire" method.
Screw Threads Calculator for Internal Unified Inch Screw. Formulas Used: Note that calculated values may be slightly different than table reference data due to math rounding differences. Maximum external major diameter. Eq. 1. d max. = d bsc − es. Eq. 2. where. d bsc = Basic major diameter. es = Allowance.
WebASME UN screw thread calculator to calculate imperial unified screw thread basic major, minor, pitch diameters and thread tolerance for the external (bolt) and internal (nut) inch threads according to ASME B1.1 standard.
Content. Screw Thread Design - Fastenal UNJ thread is a thread form having root radius limits of 0.150 to 0.180 times the thread pitch. With these enlarged radii, minor diameters of external thread increase and intrude beyond the basic profile of the UN and UNR thread forms.
ASME UN screw thread calculator to calculate imperial unified screw thread basic major, minor, pitch diameters and thread tolerance for the external (bolt) and internal (nut) inch threads according to ASME B1.1 standard.
