- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.495 inches nominal
- Fastener Length
- 1.370 inches minimum and 1.400 inches maximum
- Head Style
- Spline extended washer
- Head Height
- 0.240 inches minimum and 0.260 inches maximum
- Extended Washer Diameter
- 0.026 inches minimum and 0.046 inches maximum
- Extended Washer Thickness
- 0.026 inches minimum and 0.046 inches maximum
- Hole Diameter
- 0.050 inches minimum and 0.060 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Head Minor Diameter
- 0.235 inches minimum and 0.250 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.865 inches minimum and 0.885 inches maximum
- Hole Quantity
- 4
- Hole Type
- Drilled
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 220000 pounds per square inch
- Hole Configuration Style
- Spline
- Material
- Steel comp H11 overall
- Material Document and Classification
- Ams 6487 assn std single material response overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- MIL-C-8837, TY2 CL2 mil 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.