- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.452 inches minimum and 0.467 inches maximum
- Fastener Length
- 0.484 inches minimum and 0.531 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.080 inches minimum and 0.093 inches maximum
- Width Between Flats
- 0.243 inches minimum and 0.251 inches maximum
- Internal Drive Style
- Cross recess type III
- Nominal Thread Diameter
- 0.138 inches
- Thread Quantity per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Screw Material
- Iron alloy 660
- Screw Material Document and Classification
- Ams 5731 assn std single material response or ams 5737 assn std single material response or ams 5732 assn std single material response or ams 5853 assn std single material response
- Screw Surface Treatment
- Cadmium
- Screw Surface Treatment Document and Classification
- QQ-P-416, ty ii, cl 2 fed spec single treatment response
- Special Features
- Hydrogen embrittlement baking and testing per QQ-P-416 are not required for A286 material
- Thread Series Designator
- UNJC
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.