This SAE Aerospace Standard (AS) defines an external thread with a rounded root radius based on a minimum root radius of .108 x pitch.
SAE AS82B History
More Standards PDF
SAE AS39029/54B
$31.00 $63.00
SAE AIR5651
$58.00 $117.00
SAE AS5973B
$41.00 $83.00
SAE AS1709B
$55.00 $111.00







