- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.344 inches nominal
- Fastener Length
- 1.344 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.125 inches nominal
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Grip Diameter
- 0.249 inches nominal
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.000 inches nominal
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- Steel comp 8740 overall or steel comp 4140 overall or steel comp 4340 overall or steel comp E4340 overall or steel comp 8735 overall or steel comp 6150 overall
- Material Document and Classification
- AMS6322 assn std 1ST material response overall or MIL-S-6049 mil spec 1ST material response overall or AMS6382 assn std 2ND material response overall or AMS6415 assn std 3RD material response overall or MIL-S-5000 mil spec 4TH material response overall or MIL-S-6098 mil spec 5TH material response overall or MIL-S-8503 mil spec all material responses overall
- Surface Treatment
- Cadmium head
- Surface Treatment Document and Classification
- QQ-P-416, ty ii, cl 2 fed spec single treatment response head
- 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.