- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.276 inches minimum
- Fastener Length
- 1.010 inches minimum and 1.057 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.329 inches minimum and 0.385 inches maximum
- Grip Diameter
- 0.1885 inches minimum and 0.1895 inches maximum
- Shank Unthreaded Hole Diameter
- 0.070 inches nominal first hole
- Internal Drive Style
- Offset cruciform (torque set)
- Nominal Thread Diameter
- 0.190 inches
- Grip Length
- 0.740 inches minimum and 0.760 inches maximum
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 180000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.909 inches nominal first hole
- Surface Finish
- 32.0 microinches grip
- Material
- Steel comp 4340 overall or steel comp E4340 overall or steel comp 4140 overall or steel comp 8740 overall or steel comp 6150 overall
- Surface Treatment
- Cadmium overall or cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416 ty 1 fed spec 1ST treatment response overall or QQ-P-416 ty 2 fed spec 2ND treatment response overall
- Thread Series Designator
- UNF
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.