- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.406 inches minimum
- Fastener Length
- 1.594 inches minimum and 1.656 inches maximum
- Head Style
- Button
- Head Diameter
- 0.437 inches minimum and 0.500 inches maximum
- Head Height
- 0.096 inches minimum and 0.106 inches maximum
- Extended Washer Diameter
- 0.500 inches nominal
- Extended Washer Thickness
- 0.028 inches minimum and 0.033 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Screw Material
- Steel
- Screw Surface Treatment
- Cadmium
- 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.