Thread & Dimensions
Internal thread A (in, Class 3B)
.1380-32 UNC
External thread B (in)
.2160-28 UNF
External altered minor dia max (in)
.1758
C (in, ±.010)
.210
D dia (in, +.008/-.002)
.142
E (in, +.015/-.000)
.080
F (in, ref)
.055
G (in, ref)
.120
Min shear engagement (in²)
.0542
Blind-hole drill depth min (in)
.329
Material & Finish
Material
A286 CRES
Finish
Solid film lubricant per MIL-PRF-46010
Hardness
32–40 HRC