- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.626 inches nominal
- Fastener Length
- 2.688 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.312 inches nominal
- Width Between Flats
- 0.928 inches minimum and 0.940 inches maximum
- Grip Diameter
- 0.6386 inches minimum and 0.6396 inches maximum
- Point Diameter
- 0.6120 inches minimum and 0.6180 inches maximum
- Point Style
- FLAT
- Nominal Thread Diameter
- 0.6250 inches
- Grip Length
- 2.063 inches nominal
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 160000 pounds per square inch
- Part Name Assigned BY Controlling Agency
- Bolt, close tolerance
- Material
- Steel comp 4140 or steel comp 4340 or steel comp 8740 overall
- Material Document and Classification
- AMS6349 assn std 1ST material response or AMS6389 assn std 2ND material response or AMS6415 assn std 3RD material response or AMS6484 assn std 4TH material response or AMS6322 assn std 5TH material response overall
- Surface Treatment
- Cadmium 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.