- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.308 inches minimum and 0.323 inches maximum
- Fastener Length
- 2.668 inches minimum and 2.688 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.105 inches minimum and 0.120 inches maximum
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Grip Diameter
- 0.2483 inches minimum and 0.2492 inches maximum
- End Item Identification
- F-15S
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 2.240 inches minimum and 2.260 inches maximum
- Thread Quantity per Inch
- 28
- Hardness Rating
- 36.0 rockwell C minimum fastener and 41.0 rockwell C maximum fastener
- Part Name Assigned BY Controlling Agency
- Bolt, close toler
- Special Features
- Double shear strength 9, 300 lbs:ultimate tensile strength 4, 680 lbs
- Material
- Steel comp E4340 overall or steel comp 4140 overall or steel comp 8740 overall or steel comp 4130 overall
- Material
- Steel comp 630 ring or steel comp 631 ring
- Material Document and Classification
- Ams 5643 assn std 1ST material response ring or ams 5673 assn std 2ND material response ring
- Material Document and Classification
- MIL-S-5000 mil std 1ST material response overall or MIL-S-5626 mil std 2ND material response overall or MIL-S-6049 mil std 3RD material response overall or MIL-S-6758 mil std 4TH material response overall
- Surface Treatment
- Cadmium overall
- Surface Treatment
- Passivate ring
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response ring
- Surface Treatment Document and Classification
- QQ-P-416, type ii, 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.