- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.250 inches minimum
- Fastener Length
- 1.960 inches minimum and 2.000 inches maximum
- Head Style
- Flat chamfer
- Head Diameter
- 0.550 inches minimum and 0.562 inches maximum
- Head Height
- 0.368 inches minimum and 0.375 inches maximum
- Hole Diameter
- 0.103 inches minimum and 0.123 inches maximum
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.375 inches
- Width Across Flats
- 0.312 inches minimum and 0.316 inches maximum
- Hole Quantity
- 6
- Hole Type
- Drilled
- Thread Quantity per Inch
- 24
- Hole Configuration Style
- Round internal hexagon
- Material
- Iron alloy 660 overall
- Material Document and Classification
- AMS5731 assn std single material response overall or AMS5737 assn std single material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response overall
- Thread Series Designator
- UNRF
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.