- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.438 in nominal
- Fastener Length
- 3.938 in nominal
- Head Style
- Dished hexagon
- Head Height
- 0.156 in min / 0.171 in max
- Width Between Flats
- 0.492 in min / 0.502 in max
- Grip Diameter
- 0.311 in min / 0.312 in max
- Shank Unthreaded Hole Diameter
- 0.076 in min / 0.086 in max (first hole)
- Nominal Thread Diameter
- 0.312 in
- Grip Length
- 3.500 in nominal
- Thread Quantity per Inch
- 24
- Min Tensile Strength
- 160,000 PSI
- Distance Head to Shank Hole Center
- 3.751 in nominal (first hole)
- Material
- Steel comp 4340 or 8740
- Material Spec
- AMS4340, AMS6322, MIL-S-6049
- Surface Treatment
- Cadmium per QQ-P-416 Ty II Cl 2
- Thread Series
- UNJF
- Specification
- NAS6205
Catalogue data is compiled from public DLA/FLIS sources and is provided for
identification. Availability, condition and certification are confirmed on
quotation. OmniSynk Distribution Services is a stocking distributor.