- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.298 inches minimum and 0.348 inches maximum
- Fastener Length
- 1.558 inches minimum and 1.588 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.325 inches minimum and 0.385 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 1.240 inches minimum and 1.260 inches maximum
- Features Provided
- Dry film lubricant
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 220000 pounds per square inch
- Hardness Rating
- 46.0 rockwell C minimum overall and 50.0 rockwell C maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- Steel comp H11 overall
- Material Document and Classification
- Ams 6487 assn std single material response overall
- Surface Treatment
- Aluminum overall and chromate overall
- Surface Treatment Document and Classification
- MIL-C-83488 ty 2 cl 3 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.