- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.484 in min / 0.563 in max
- Fastener Length
- 0.750 in min / 0.797 in max
- Head Style
- Hexagon
- Head Height
- 0.140 in min / 0.172 in max
- Width Between Flats
- 0.428 in min / 0.440 in max
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.234 in min / 0.266 in max
- Features Provided
- Finished head
- Thread Quantity per Inch
- 28
- Min Tensile Strength
- 140,000 PSI
- Hardness
- 27.0 Rc min / 37.0 Rc max
- Material
- Steel overall
- Material Document
- MIL-B-7874
- Surface Treatment
- Passivate overall
- Thread Series
- 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.