Shopping Cart

No products in the cart.

SAE MA 1370:1990

$25.35

Screw Threads – MJ Profile, Metric

Published By Publication Date Number of Pages
SAE 1990-01-31 38
Guaranteed Safe Checkout
Categories: , ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This standard specifies the characteristics of the MJ profile metric series of screw threads, altered from ISO 68 M Profile, to include a mandatory controlled radius of 0.18042P to 0.15011P at the root of the external thread and with the minor diameter of both external and internal threads increased to provide a basic thread height of 0.5625H in order to accommodate the external thread maximum root radius. The following detailed requirements are included:
  1. a

    MJ basic profile and design profiles
  2. b

    Standard series of diameter-pitch combinations for nominal thread diameters from 1.6 to 200 mm
  3. c

    Standard thread classes and form tolerances
  4. d

    Formulae for thread dimensions and tolerances
  5. e

    Method of designating MJ threads
  6. f

    Inspection requirement
  7. g

    Tables for selected diameter-pitch combinations for aerospace screws, bolts, nuts, shaft and bearing retaining screw threads, and fluid fittings thread sizes
  8. h

    Tables for MJ screw threads limiting dimensions and tolerances
  9. i

    Symbols for MJ thread dimensions and tolerances
SAE MA 1370:1990
$25.35