- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.425 inches nominal
- Fastener Length
- 0.848 in min / 0.878 in max
- Head Style
- Dished hexagon
- Head Height
- 0.125 in min / 0.140 in max
- Width Between Flats
- 0.429 in min / 0.439 in max
- Grip Diameter
- 0.2485 in min / 0.2495 in max
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.428 in min / 0.448 in max
- Thread Quantity per Inch
- 28
- Min Tensile Strength
- 160,000 PSI
- Surface Finish
- 32.0 microinches (head, grip, threads)
- Material
- Iron alloy 660 overall
- Material Spec
- AMS 5731 or AMS 5737
- Surface Treatment
- Cadmium overall and chromate overall (QQ-P-416, TY2 CL2)
- Thread Series
- UNJF
- Specification
- NAS6704
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.