- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.593 inches nominal
- Fastener Length
- 1.703 inches minimum and 1.733 inches maximum
- Head Style
- Double hexagon extended washer
- Head Height
- 0.309 inches minimum and 0.329 inches maximum
- Width Between Flats
- 0.418 inches minimum and 0.434 inches maximum
- Extended Washer Diameter
- 0.575 inches minimum and 0.585 inches maximum
- Extended Washer Thickness
- 0.040 inches minimum and 0.060 inches maximum
- Nominal Thread Diameter
- 0.3125 inches
- Grip Length
- 1.115 inches minimum and 1.135 inches maximum
- Thread Quantity per Inch
- 24
- Material
- Iron alloy 660 overall
- Surface Treatment
- Aluminum threads
- Surface Treatment Document and Classification
- Bms 10-85, ty I mfr ref single treatment response threads
- Thread Series Designator
- UNJF
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.