Thread & Dimensions
A internal thread (Class 3B)
5/16-24 UNF
B external thread (Class 3A)
13/32-20 NS
Ø max minor special
.3651
Ø C (+.008/-.002)
.336
D (+.015/-.000)
.110
E ref
.266
G (±.010)
.470
Through-hole preparation
Min. full THD depth .730; Min. full depth 0,505
Blind-hole preparation
Min. full THD depth .630; Min. full depth 0,505
Material & Finish
Material
A286 per AMS5731 or AMS 5734
Finish
PASSIVATED per AMS 2700 & SFL coated per SAE AS5272, Type 1
Temperature range
-400°/+650°F
Heat treat
RC 32-40
Magnetic
NO