- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.578 inches nominal
- Fastener Length
- 3.313 inches minimum and 3.343 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.173 inches minimum and 0.203 inches maximum
- Width Between Flats
- 0.554 nominal mils and 0.564 nominal centimeters
- Grip Diameter
- 0.374 nominal mils and 0.375 nominal centimeters
- Shank Unthreaded Hole Diameter
- 0.106 nominal mils overall and 0.116 nominal centimeters overall
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 2.740 nominal mils and 2.760 nominal centimeters
- Thread Quantity per Inch
- 24
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 3.131 inches nominal overall
- Part Name Assigned BY Controlling Agency
- Bolt, tension, hex head, close tolerance, alloy steel, long thread, reduced major dia, nonlocking, 160 ksi ftu
- Material
- Steel comp 4140 overall or steel comp 4340 overall
- Material Document and Classification
- AMS6349 assn std single material response overall or AMS6340 assn std single material response overall or ams 6415 assn std single material response overall or ams 6484 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- AMS-QQ-P-416 type ii class 2 assn std 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.