- Thread Class
- 3B
- Thread Direction
- Right-hand
- Nut Style
- Hexagon
- Nut Height
- 0.115 inches minimum and 0.135 inches maximum
- Width Across Flats
- 0.430 inches minimum and 0.439 inches maximum
- Thread Series
- UNF
- Thread Quantity per Inch
- 28
- Hardness Rating
- 19.0 rockwell C minimum and 26.0 rockwell C maximum
- Nominal Thread Size
- 0.250 inches
- Countersink Angle
- 88.0 degrees minimum nut and 92.0 degrees maximum nut
- Bearing Surface Type
- Chamfered or washer faced
- Bearing Surface Finish
- 60.0 microinches
- Material
- Steel comp 8735 overall or steel comp 8740 overall
- Material Document and Classification
- Ams 6320 assn std 1ST material response overall or ms 6325 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- Ams 2400 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.