- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.308 inches minimum and 0.323 inches maximum
- Fastener Length
- 1.550 inches minimum and 1.570 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.126 inches minimum and 0.141 inches maximum
- Width Between Flats
- 0.422 inches minimum
- Grip Diameter
- 0.2483 inches minimum and 0.2492 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.132 inches nominal
- Thread Quantity per Inch
- 28
- Material
- Steel comp 630 locking feature
- Material
- Steel overall
- Material Document and Classification
- Ms 5643 assn std single material response locking feature
- Surface Treatment
- Cadmium overall
- Surface Treatment
- Passivate locking feature
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response locking feature
- Surface Treatment Document and Classification
- QQ-P-416, type ii, class 2 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.