- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.498 inches nominal
- Fastener Length
- 1.748 inches minimum and 1.788 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.203 inches minimum and 0.235 inches maximum
- Width Between Flats
- 0.553 inches minimum and 0.565 inches maximum
- Shoulder Diameter
- 0.371 inches minimum first shoulder and 0.374 inches maximum first shoulder
- Shoulder Length
- 1.260 inches minimum first shoulder and 1.290 inches maximum first shoulder
- Nominal Thread Diameter
- 0.312 inches
- Thread Quantity per Inch
- 3A
- Minimum Tensile Strength
- 6500 pounds per square inch
- Shoulder Shape
- Round first shoulder
- Material
- Steel overall
- Material Document and Classification
- MIL-S-5626 mil spec single material response overall or MIL-S-6049 mil spec single material response overall or MIL-S-6050 mil spec single material response overall or MIL-S-6098 mil spec single material response overall or MIL-S-6758 mil spec single material response overall or ams 6300 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 2 fed spec single treatment response overall
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS1297 professional/industrial association standard
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.