- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.403 inches nominal
- Fastener Length
- 2.778 inches nominal
- Head Style
- Flat countersunk
- Head Diameter
- 0.464 inches nominal
- Grip Diameter
- 0.249 inches minimum
- Internal Drive Style
- Offset cruciform (torque set)
- End Item Identification
- B-1B aircraft
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 2.375 inches nominal
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Material
- Steel comp 4140 overall
- Material Document and Classification
- AMS6349 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
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.