- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.345 in min / 0.395 in max
- Fastener Length
- 1.855 in min / 1.885 in max
- Head Style
- Dished hexagon
- Head Height
- 0.125 in min / 0.140 in max
- Width Between Flats
- 0.430 in min / 0.439 in max
- Grip Diameter
- 0.2490 in min / 0.2495 in max
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.490 in min / 1.510 in max
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 PSI
- Surface Finish
- 32.0 microinches (bearing surface, grip, threads)
- Material
- Iron alloy 660 overall
- Spec
- AMS 5731 / AMS 5737
- Thread Series
- UNJF
- Standard
- NAS6304
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.