- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.400-0.450 in
- Fastener Length
- 2.222-2.252 in
- Head Style
- Flat countersunk
- Head Diameter
- 0.455-0.510 in
- Grip Diameter
- 0.2485-0.2495 in
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.250 in
- Grip Length
- 1.802-1.822 in
- TPI
- 28
- Countersink Angle
- 100 degrees nominal
- Surface Finish
- 32.0 microinches
- Material
- Steel E4340 or 8740
- Surface Treatment
- Cadmium and chromate, QQ-P-416 ty2 cl2
- Thread Series
- UNJF
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.