- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.443 inches minimum and 0.510 inches maximum
- Fastener Length
- 1.078 inches minimum and 1.125 inches maximum
- Head Style
- Flat countersunk undercut
- Head Diameter
- 0.501 inches minimum and 0.506 inches maximum
- Head Height
- 0.058 inches minimum and 0.060 inches maximum
- Shoulder Diameter
- 0.2802 inches minimum first shoulder and 0.2807 inches maximum first shoulder
- Shoulder Length
- 0.615 inches minimum first shoulder and 0.635 inches maximum first shoulder
- Internal Drive Style
- High-torque
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 125000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Shoulder Shape
- Round first shoulder
- Special Features
- Furnish with one O-ring
- Material
- Steel comp XM-13 overall
- Material Document and Classification
- AMS5629 assn std single material response overall
- Surface Treatment
- Passivate 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.