- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.438 inches nominal
- Fastener Length
- 1.251 inches nominal
- Head Style
- Dished hexagon
- Head Height
- 0.156 inches minimum and 0.171 inches maximum
- Width Between Flats
- 0.497 inches nominal
- Locking Feature
- Detent ring threads
- Grip Diameter
- 0.312 inches nominal
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.803 inches minimum and 0.823 inches maximum
- Thread Quantity per Inch
- 24
- Special Features
- Locking element is plastic per MIL-F-18240 and QPL18240;BOLT marked with green dye or paint on the thread end
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5731 assn std single material response overall or ams 5737 assn std single material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment Document and Classification
- QQ-P-416, type 2, 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.