- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.620-0.750 in
- Fastener Length
- 0.720-0.750 in
- Head Style
- Flat chamfer
- Head Diameter
- 0.365-0.375 in
- Head Height
- 0.244-0.250 in
- Hole Diameter
- 0.047 in nominal
- Internal Drive Style
- Hexagon
- Nominal Thread Diameter
- 0.250 in (1/4-20)
- Width Across Flats
- 0.188-0.190 in
- Hole Quantity
- 6
- Hole Type
- Drilled
- Thread Quantity per Inch
- 20
- Min Tensile Strength
- 80,000 psi
- Hardness
- 80.0 Rockwell B min
- Min Yield Strength
- 30,000 psi
- Hole Configuration
- Round internal hexagon
- Material
- Stainless steel (302/304/305/316/384/XM-7)
- Surface Treatment
- Passivate per QQ-P-35
- Thread Series
- UNRC
- Spec
- NAS1352
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.