- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.425 inches nominal
- Fastener Length
- 1.160 inches minimum and 1.190 inches maximum
- Head Style
- Fillister countersunk
- Head Height
- 0.110 inches nominal
- Spline Major Diameter
- 0.221 inches nominal
- Grip Diameter
- 0.249 inches minimum and 0.250 inches maximum
- Internal Drive Style
- TORX
- End Item Identification
- Fighter aircraft (F18E/F)
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.740 inches minimum and 0.760 inches maximum
- Thread Quantity per Inch
- 28
- Countersink Angle
- 99.0 degrees minimum and 100.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- (Inavy) screw, close tolerance
- Material
- Steel corrosion resisting overall
- Surface Treatment
- Aluminum 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.