- Thread Class
- 3A
- Thread Direction
- Right-hand
- Fastener Length
- 1.477 inches minimum and 1.497 inches maximum
- Head Height
- 0.059 inches minimum and 0.069 inches maximum
- Width Between Flats
- 0.095 inches minimum and 0.097 inches maximum
- Shank Diameter
- 0.249 inches minimum and 0.250 inches maximum
- Shank Style
- Pin-rivet, straight, threaded
- Head Major Diameter
- 0.387 inches minimum and 0.412 inches maximum
- Grip Length
- 1.067 inches maximum
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Nominal Thread Size
- 0.250 inches
- Shear Strength
- 5000 single pounds per square inch
- Material
- Steel comp 4140 or steel comp 8740 or steel comp 4130 overall
- Material Document and Classification
- MIL-S-5626 mil spec 1ST material response or MIL-S-6049 mil spec 2ND material response or MIL-S-6758 mil spec 3RD 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.