- Thread Class
- 3A
- Thread Direction
- Right-hand
- Fastener Length
- 1.739 inches minimum and 1.769 inches maximum
- Head Style
- Flat countersunk
- Head Diameter
- 0.449 inches minimum and 0.507 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 28
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Part Name Assigned BY Controlling Agency
- Screw, machine-flat 100 deg head, close tolerance, short thread, offset cruciform, 160 ksi
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5737 assn std single material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response 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.