Thread & Dimensions
A internal thread (Class 3B)
1/2-13 UNC
B external thread (Class 3A)
9/16-24 UNEF
Ø max minor special
.5290
Ø C (+.008/-.002)
.505
D (+.015/-.000)
.135
F
.490
G (±.010)
.750
J (±1)
44
Through-hole preparation
Min. full THD depth .973; Min. full depth .785
Blind-hole preparation
Min. full THD depth .889; Min. full depth .785
Material & Finish
Material
Alloy Steel 4130 per AMS 6370
Finish
Cadmium Plated per AMS-QQ-P-416 Type 2, Class 3 & SFL per SAE AS5272
Temperature range
Up to 450+°F
Heat treat
RC 25-34
Magnetic
YES