- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.344 inches minimum
- Fastener Length
- 1.594 inches nominal
- Head Style
- Hexagon
- Head Height
- 0.125 inches nominal
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Grip Diameter
- 0.2487 inches minimum and 0.2492 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches nominal first hole
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.250 inches nominal
- Thread Quantity per Inch
- 20
- Distance from Head Largest Bearing Surface to Shank Hole Center
- 1.438 inches nominal first hole
- Material
- Iron alloy 660 overall
- Material Document and Classification
- Ams 5732 assn std single material response overall
- Thread Series Designator
- UNF
- Specification/Standard Data
- 81205-BACB30BH manufacturers standard
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.