- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 1.250 inches nominal
- Fastener Length
- 1.625 inches nominal
- 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
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.3750 inches
- Width Across Flats
- 0.312 inches nominal
- Thread Quantity per Inch
- 24
- Chamfer Angle
- 30.0 degrees minimum and 45.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Screw cap socket head
- Material
- Steel overall
- Material Document and Classification
- SPECFFS86 fed spec single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- AMSQQ+416 assn std 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.