- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.418 inches minimum and 0.438 inches maximum
- Fastener Length
- 1.918 inches minimum and 1.938 inches maximum
- Head Style
- Flat chamfer
- Head Diameter
- 0.419 inches minimum and 0.438 inches maximum
- Head Height
- 0.183 inches nominal
- Shoulder Diameter
- 0.3085 inches minimum and 0.3105 inches maximum all shoulders
- Shoulder Length
- 1.500 inches nominal all shoulders
- Internal Drive Style
- Hexagon
- End Item Identification
- A4 bradley fighting vehicle
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.156 inches nominal
- Thread Quantity per Inch
- 20
- Chamfer Angle
- 30.0 degrees minimum and 45.0 degrees maximum
- Shoulder Shape
- Round all shoulders
- Material
- Steel overall
- Material Document and Classification
- Nasm 21472 national std/spec single material response overall
- Surface Treatment
- Zinc overall
- Surface Treatment Document and Classification
- Astm B 633, type ii, class fe/zn 5 assn std single treatment response overall
- Thread Series Designator
- UNC
- Specification/Standard Data
- 80205-NAS-51975 national std/spec
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.