- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.679 inches minimum and 0.750 inches maximum
- Fastener Length
- 0.750 inches nominal
- Head Style
- Flat countersunk
- Head Diameter
- 0.452 inches minimum and 0.507 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 55000 pounds per square inch
- Countersink Angle
- 80.0 degrees minimum and 82.0 degrees maximum
- Screw Material
- Steel comp 1010 or steel comp 1011 or steel comp 1013
- Screw Material Document and Classification
- 66 fed std all material responses
- Screw Surface Treatment
- Cadmium and chromate
- Screw Surface Treatment Document and Classification
- QQ-P-416 ty 2 cl 3 fed spec single treatment response
- 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.