- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.469 in min
- Fastener Length
- 1.719 in nominal
- Head Style
- Dished hexagon
- Head Height
- 0.156 in nominal
- Width Between Flats
- 0.492-0.502 in
- Grip Diameter
- 0.3110-0.3120 in
- Nominal Thread Diameter
- 0.312 in
- Grip Length
- 1.250 in nominal
- Thread Qty/Inch
- 24
- Min Tensile Strength
- 160,000 psi
- Hardness
- 36.0-40.0 Rockwell C
- Material
- Steel comp 4140/E4340/6150/8735/8740
- Material Docs
- MIL-S-5626, MIL-S-5000, MIL-S-8503, MIL-S-6098, MIL-S-6049
- Surface Treatment
- Cadmium and chromate (QQ-P-416, type 2, class 3)
- 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.