- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.960-1.000 inches
- Fastener Length
- 1.960-2.000 inches
- Head Style
- Flat chamfer
- Head Diameter
- 0.365-0.375 inches
- Head Height
- 0.244-0.250 inches
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.187-0.190 inches
- Thread Quantity per Inch
- 20
- Min Tensile Strength
- 160,000 psi
- Hardness Rating
- 36.0-45.0 Rockwell C
- Min Yield Strength
- 130,000 psi
- Material
- Steel overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Doc
- QQ-P-416, Ty 2, Cl 3
- Thread Series Designator
- UNC
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.