- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.469 inches nominal
- Fastener Length
- 1.469 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.156 inches nominal
- Width Between Flats
- 0.492 inches minimum and 0.502 inches maximum
- Grip Diameter
- 0.3266 inches minimum and 0.3276 inches maximum
- End Item Identification
- B-52 aircraft
- Nominal Thread Diameter
- 0.3125 inches
- Grip Length
- 1.000 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Material
- Steel comp 4140 or steel comp 4340 or steel comp 8740 overall
- Material Document and Classification
- Ams 6382 assn std 1ST material response or ams 6415 assn std 2ND material response or ams 6322 assn std 3RD material response overall
- Surface Treatment
- Cadmium and chromate overall
- Surface Treatment Document and Classification
- AMS-QQ-P-416, type ii, class 2 assn std 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.