- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.501 inches minimum and 0.578 inches maximum
- Fastener Length
- 2.766 inches minimum and 2.813 inches maximum
- Head Style
- Modified pan
- Head Diameter
- 0.375 inches nominal
- Head Height
- 0.098 inches minimum and 0.108 inches maximum
- Grip Diameter
- 0.2460 inches minimum and 0.2490 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 2.235 inches minimum and 2.265 inches maximum
- Thread Quantity per Inch
- 28
- Minimum Yield Strength
- 125000 pounds per square inch
- Material
- Steel comp 4037 overall
- Material Document and Classification
- AMS6300 assn std single material response overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416, ty 2, cl 2 fed spec 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.