- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.813 inches nominal
- Fastener Length
- 1.438 inches nominal
- Head Style
- Bevel-conical
- Head Diameter
- 0.818 inches minimum and 0.828 inches maximum
- Head Height
- 0.500 inches nominal
- Hole Diameter
- 0.055 inches nominal
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.500 inches
- Width Across Flats
- 0.3755 inches minimum and 0.3785 inches maximum
- Hole Quantity
- 4
- Hole Type
- Drilled
- Thread Quantity per Inch
- 20
- Hardness Rating
- 34.0 rockwell C minimum and 40.0 rockwell C maximum overall
- Hole Configuration Style
- Round
- Material
- Steel overall
- Surface Treatment
- Cadmium and chromate 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.