- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.593 inches nominal
- Fastener Length
- 0.828 inches minimum and 0.858 inches maximum
- Head Style
- Double hexagon W/hole
- Head Height
- 0.280 inches minimum and 0.300 inches maximum
- Width Between Flats
- 0.367 inches minimum and 0.376 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
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Nominal Thread Diameter
- 0.3125 inches
- Grip Length
- 0.25 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 200000 pounds per square inch
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5737 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- AMS-QQ-P-416, type 2, class 2 assn std single treatment response overall
- 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.