- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.837 inches minimum and 0.887 inches maximum
- Fastener Length
- 2.409 inches minimum and 2.439 inches maximum
- Head Style
- Spline extended washer
- Head Height
- 0.495 inches minimum and 0.515 inches maximum
- Extended Washer Diameter
- 1.037 inches minimum and 1.047 inches maximum
- Extended Washer Thickness
- 0.071 inches minimum and 0.091 inches maximum
- Grip Diameter
- 0.5605 inches minimum and 0.5615 inches maximum
- Head Minor Diameter
- 0.610 inches minimum and 0.625 inches maximum
- Nominal Thread Diameter
- 0.562 inches
- Grip Length
- 1.552 inches minimum and 1.572 inches maximum
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell C minimum overall and 43.0 rockwell C maximum overall
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Material
- Steel comp 4140 overall or steel comp E4340 overall or steel comp 8740 overall or steel comp 6150 overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416 TY2 CL3 fed spec single treatment response 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.