- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.400-0.450 inches
- Fastener Length
- 1.535-1.565 inches
- Head Style
- Dished hexagon
- Head Height
- 0.125-0.140 inches
- Width Between Flats
- 0.429-0.439 inches
- Hole Diameter
- 0.046-0.056 inches
- Grip Diameter
- 0.2485-0.2495 inches
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.115-1.135 inches
- Hole Quantity
- 3
- Hole Type
- Drilled
- Thread Quantity per Inch
- 28
- Min Tensile Strength
- 160000 psi
- Hardness Rating
- 36.0-40.0 Rockwell C
- Hole Configuration Style
- Hexagon corners
- Surface Finish
- 32.0 microinches RMS
- Material
- Steel, composition E4340 or 8740
- Material Spec
- MIL-S-5000, MIL-S-6049, AMS 6322
- Surface Treatment
- Cadmium and chromate per QQ-P-416 Type II Class 2
- Thread Series
- UNJF
- Spec
- NAS6604
- Configuration
- Drilled head, 3 holes at hex corners
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.