- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.531 inches minimum and 0.591 inches maximum
- Fastener Length
- 3.625 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.156 inches nominal
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Grip Diameter
- 0.2460 inches minimum and 0.2490 inches maximum
- Internal Drive Style
- W/O internal drive
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.252 inches minimum and 0.312 inches maximum
- Thread Quantity per Inch
- 28
- Hardness Rating
- 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall
- Material
- Steel comp 8740 overall
- Surface Treatment
- Cadmium overall
- Thread Series Designator
- UNF
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.