- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.444 in min / 0.494 in max
- Fastener Length
- 3.329 in min / 3.359 in max
- 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
- 0.3110 in min / 0.3120 in max
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 2.865 in min / 2.885 in max
- Thread Quantity per Inch
- 24
- Min Tensile Strength
- 160,000 PSI
- Hardness
- 36.0-40.0 Rockwell C
- Material
- Steel comp 4140/E4340/6150/8735/8740
- Material Spec
- MIL-S-5626, MIL-S-5000, MIL-S-8503, MIL-S-6098, MIL-S-6049
- Surface Treatment
- Cadmium and chromate per QQ-P-416 ty 2 cl 2
- Thread Series
- UNJF
- Standard
- NAS1305
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.