- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.351 inches minimum
- Fastener Length
- 0.914 inches nominal
- Head Style
- Double hexagon
- Head Height
- 0.187 inches nominal
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Grip Diameter
- 0.3108 inches minimum and 0.3117 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.562 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 220000 pounds per square inch
- Hardness Rating
- 46.0 rockwell C minimum overall and 50.0 rockwell C maximum overall
- Material
- Steel overall
- Material Document and Classification
- SPS-M-107, fscm 03680 mfr ref single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- Nas 672 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.