- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.499 inches minimum and 0.578 inches maximum
- Fastener Length
- 0.765 inches minimum and 0.812 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.203 inches minimum and 0.234 inches maximum
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Locking Feature
- Strip threads
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.234 inches minimum and 0.266 inches maximum
- Features Provided
- Finished head
- Thread Quantity per Inch
- 20
- Special Features
- 6 drilled holes 0.070 in. dia in head
- Material
- Steel comp 4140 overall or steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4130 overall or steel comp 4037 overall
- Surface Treatment
- Cadmium overall and chromate overall
- Surface Treatment Document and Classification
- QQ-P-416 ty 2 cl 3 fed spec single treatment response overall
- 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.