- Thread Class
- 3B
- Thread Direction
- Right-hand
- Nut Style
- Hexagon
- Nut Height
- 0.240 inches minimum and 0.260 inches maximum
- Drilled Hole Diameter
- 0.047 inches nominal
- Hole Type and Quantity
- 2 drilled
- Width Across Flats
- 0.679 inches minimum and 0.690 inches maximum
- Thread Series
- UNF
- Thread Quantity per Inch
- 20
- Nominal Thread Size
- 0.438 inches
- Hole Configuration Style
- Configuration B
- Countersink Angle
- 105.0 degrees minimum nut and 115.0 degrees maximum nut
- Bearing Surface Type
- Chamfered or washer faced
- Bearing Surface Finish
- 63.0 microinches
- Material
- Aluminum alloy 2017 overall
- Material Document and Classification
- Ams 4118 assn std single material response overall
- Surface Treatment
- Anodize overall
- Surface Treatment Document and Classification
- Ams 2470 assn std single treatment response overall
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.