- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.489 inches minimum and 0.509 inches maximum
- Fastener Length
- 1.765 inches minimum and 1.812 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.203 inches minimum and 0.234 inches maximum
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Hole Diameter
- 0.070 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.234 inches minimum and 1.266 inches maximum
- Hole Quantity
- 6
- Hole Type
- Drilled
- Features Provided
- Finished head
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Hardness Rating
- 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall
- Hole Configuration Style
- Hexagon longitudinal hole
- Material
- Steel overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 3 fed spec all treatment responses 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.