- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 1.125 inches minimum and 1.313 inches maximum
- Fastener Length
- 2.750 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.272 inches minimum and 0.291 inches maximum
- Width Between Flats
- 0.612 inches minimum and 0.625 inches maximum
- Nominal Thread Diameter
- 0.438 inches
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 150000 pounds per square inch
- Hardness Rating
- 32.0 rockwell C minimum overall and 38.0 rockwell C maximum overall
- Minimum Yield Strength
- 120000 pounds per square inch
- Material
- Steel overall
- Material Document and Classification
- Sae gr 8 assn std single material response overall
- Surface Treatment
- Zinc overall and chromate overall
- Surface Treatment Document and Classification
- Astm B633 ty 2 sc 3 assn std single treatment response 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.