- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.036 inches minimum and 1.076 inches maximum
- Fastener Length
- 3.546 inches minimum and 3.566 inches maximum
- Head Style
- Double hexagon W/hole
- Head Height
- 0.711 inches nominal
- Width Between Flats
- 0.803 inches minimum and 0.814 inches maximum
- Extended Washer Diameter
- 1.220 inches minimum and 1.230 inches maximum
- Extended Washer Thickness
- 0.178 inches nominal
- Grip Diameter
- 0.7480 inches minimum and 0.7490 inches maximum
- Nominal Thread Diameter
- 0.750 inches
- Grip Length
- 2.490 inches minimum and 2.510 inches maximum
- Thread Quantity per Inch
- 16
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell C minimum and 43.0 rockwell C maximum overall
- Material
- Steel comp 8740 or steel comp 4140 or steel comp E4340 or steel comp 6150 overall
- Material Document and Classification
- MIL-S-6049 mil spec 1ST material response or MIL-S-5626 mil spec 2ND material response or MIL-S-5000 mil spec 3RD material response or MIL-S-8503 mil spec 4TH material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2 cl 3 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.