- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.396 inches minimum and 0.463 inches maximum
- Fastener Length
- 1.156 inches minimum and 1.203 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.234 inches minimum and 0.266 inches maximum
- Width Between Flats
- 0.740 inches minimum and 0.752 inches maximum
- Grip Diameter
- 0.4986 inches minimum and 0.4991 inches maximum
- Shank Unthreaded Hole Diameter
- 0.106 inches minimum first hole and 0.116 inches maximum first hole
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 0.750 inches nominal
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.984 inches minimum first hole and 1.016 inches maximum first hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Material
- Steel comp E4340 overall or steel comp 4140 overall or steel comp 8740 overall or steel comp 8735 overall or steel comp 6150 overall
- Material Document and Classification
- MIL-S-5000 mil spec 1ST material response overall or MIL-S-5626 mil spec 2ND material response overall or MIL-S-6049 mil spec 3RD material response overall or MIL-S-6098 mil spec 4TH material response overall or MIL-S-8503 mil spec 5TH material response overall
- Surface Treatment
- Cadmium bearing surface of head and chromate bearing surface of head
- Surface Treatment
- Cadmium threads and chromate threads
- Surface Treatment Document and Classification
- QQ-P-416 ty 2 cl 2 fed spec single treatment response bearing surface of head
- Surface Treatment Document and Classification
- QQ-P-416 ty 2 cl 2 fed spec single treatment response threads
- Thread Series Designator
- UNJF
- Specification/Standard Data
- 80205-NAS660 professional/industrial association standard
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.