- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.278 inches minimum and 0.329 inches maximum
- Fastener Length
- 0.981 inches minimum and 1.001 inches maximum
- Head Style
- Flat chamfer
- Head Diameter
- 0.477 inches minimum and 0.492 inches maximum
- Head Height
- 0.126 inches minimum and 0.141 inches maximum
- Locking Feature
- Detent ball grip
- Grip Diameter
- 0.2487 inches minimum and 0.2492 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches minimum first hole and 0.086 inches maximum first hole
- Internal Drive Style
- SLOT
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.562 inches minimum and 0.578 inches maximum
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 63000 pounds per square inch
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 0.885 inches minimum first hole and 0.905 inches maximum first hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Material
- Steel comp 631 spring or steel comp 302 spring
- Material
- Steel comp 632 fastener
- Material Document and Classification
- Astm A580 cond. a assn std single material response spring
- 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.