- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 2.940 inches minimum and 3.060 inches maximum
- Fastener Length
- 3.969 inches minimum and 4.031 inches maximum
- Head Diameter
- 1.852 inches minimum and 1.875 inches maximum
- Head Height
- 1.236 inches minimum and 1.250 inches maximum
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 1.250 inches
- Width Across Flats
- 0.875 inches minimum and 0.885 inches maximum
- Thread Quantity per Inch
- 12
- Minimum Tensile Strength
- 180000 pounds per square inch
- Minimum Yield Strength
- 155000 pounds per square inch
- Surface Finish
- 63.0 microinches overall
- Material
- Steel comp 4140 or steel comp E4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
- Material Document and Classification
- MIL-S-5626 mil spec 1ST material response or MIL-S-5000 mil spec 2ND material response or MIL-S-8503 mil spec 3RD material response or MIL-S-6098 mil spec 4TH material response or MIL-S-6049 mil spec 5TH material response overall
- Surface Treatment
- Cadmium 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.