- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.562 inches maximum
- Fastener Length
- 0.546 inches minimum and 0.593 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.156 inches minimum and 0.171 inches maximum
- Width Between Flats
- 0.429 inches minimum and 0.439 inches maximum
- Internal Drive Style
- Cross recess type 1
- Nominal Thread Diameter
- 0.312 inches
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Screw Material
- Steel comp 4140 or steel comp 4340 or steel comp 8740
- Screw 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
- Screw Surface Treatment
- Cadmium
- Screw Surface Treatment Document and Classification
- AMS-QQ-P-416, ty ii, cl 2 assn std single treatment response
- 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.