- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.3630 inches nominal
- Fastener Length
- 1.149 inches minimum and 1.179 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.3813 inches nominal
- Grip Diameter
- 0.1890 inches minimum and 0.1895 inches maximum
- Internal Drive Style
- Offset cruciform (torque set)
- End Item Identification
- C-17A aircraft
- Nominal Thread Diameter
- 0.1900 inches
- Grip Length
- 0.428 inches minimum and 0.448 inches maximum
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 3180 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Special Features
- Point of screw shall be flat and chamfered; heat treat 160-180 ksi ftu per ams 4928 or ams 4967; the offset cruciform recess diameter is 0.248 inch
- Material
- Titanium alloy uns R54520 overall
- Material Document and Classification
- AMS4928 assn std 1ST material response overall or AMS4967 assn std 2ND material 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.