Thread & Dimensions
A internal thread (Class 3B)
10-24 UNC
B external thread (Class 3A)
1/4-28 UNF
Ø max minor special
.2170
Ø C (+.008/-.002)
.192
D (+.015/-.000)
.080
E
.157
G (±.010)
.290
J (±1)
20
Through-hole preparation
Min. full THD depth .486; Min. full depth .325
Blind-hole preparation
Min. full THD depth .486; Min. full depth .325
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