- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.425 inches nominal
- Fastener Length
- 3.410 inches minimum and 3.440 inches maximum
- Head Style
- Dished hexagon
- Head Height
- 0.125 inches minimum and 0.140 inches maximum
- Width Between Flats
- 0.429 inches minimum and 0.439 inches maximum
- Grip Diameter
- 0.249 inches minimum and 0.250 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 2.990 inches minimum and 3.010 inches maximum
- Thread Quantity per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Part Name Assigned BY Controlling Agency
- Bolt, tension, hex head, close tolerance, A286 cres, long thread, reduced major thread dia., nonlocking, 160 ksi ftu
- Special Features
- Has drilled shank, 0.046 in. dia. centered 0.178 in. from screw end
- Material
- Steel corrosion resisting overall
- Material Document and Classification
- UNS66286 iaw AMS5731, AMS5732, AMS5737, or AMS5853 assn std single material response overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- AMS2700, method 1, type 2 or type 8, class 1 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.