- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.578 inches minimum
- Fastener Length
- 1.890 inches nominal
- Head Style
- Dished hexagon
- Head Height
- 0.188 inches nominal
- Width Between Flats
- 0.553 in min / 0.564 in max
- Grip Diameter
- 0.3735 in min / 0.3745 in max
- Shank Unthreaded Hole Diameter
- 0.106 inches nominal
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 1.312 inches nominal
- Thread Quantity per Inch
- 24
- Minimum Tensile Strength
- 160,000 psi
- Hardness Rating
- 36.0-40.0 Rockwell C
- Material
- Steel comp 4140/E4340/6150/8735/8740
- Material Specs
- MIL-S-5626, MIL-S-5000, MIL-S-8503, MIL-S-6098, MIL-S-6049
- Surface Treatment
- Cadmium + Chromate (QQ-P-416, Ty 2 Cl 2)
- Thread Series Designator
- UNF
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.