- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.425 inches nominal
- Fastener Length
- 1.513 inches nominal
- Head Style
- Flat countersunk
- Head Diameter
- 0.465 inches minimum and 0.510 inches maximum
- Grip Diameter
- 0.250 inches maximum
- Internal Drive Style
- Cross recess type 1
- End Item Identification
- Aircraft, B757
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.250 inches nominal
- Thread Quantity per Inch
- 28
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Special Features
- Thread end to be identified W/black dye or paint
- Material
- Titanium alloy overall
- Surface Treatment
- Aluminum overall
- Thread Series Designator
- 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.