- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.484 inches minimum and 0.563 inches maximum
- Fastener Length
- 1.250 inches minimum and 1.297 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.140 inches minimum and 0.172 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.734 inches minimum and 0.766 inches maximum
- Features Provided
- Finished head
- Thread Quantity per Inch
- 28
- Hardness Rating
- 27.0 rockwell C minimum overall and 37.0 rockwell C maximum overall
- Surface Finish
- 32.0 microinches threads
- Surface Finish
- 63.0 microinches bearing surface of head
- Surface Finish
- 63.0 microinches grip
- Material
- Steel corrosion resisting overall
- Thread Series Designator
- UNJF
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.