- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.420 inches minimum and 0.430 inches maximum
- Fastener Length
- 1.985 inches minimum and 2.015 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.497 inches minimum and 0.506 inches maximum
- Spline Major Diameter
- 0.154 inches minimum and 0.156 inches maximum
- Grip Diameter
- 0.249 inches nominal
- Point Diameter
- 0.425 inches nominal
- Point Style
- FLAT
- Internal Drive Style
- TORX
- End Item Identification
- Item used on fighter aircraft-first (F18 E/f)
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.928 inches minimum and 0.948 inches maximum
- Thread Quantity per Inch
- 28
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Bolt, 100 degree tension head, gear drive recess
- Special Features
- 125 ksi shear strength
- Material
- Nickel alloy 718 overall
- Material Document and Classification
- Ams 5662 assn std single material response overall
- Surface Treatment
- Passivate 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.