- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.750 inches minimum and 0.938 inches maximum
- Fastener Length
- 4.406 inches minimum and 4.500 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.150 inches minimum and 0.163 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.437 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity per Inch
- 20
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 80.0 rockwell B minimum overall
- Minimum Yield Strength
- 30000 pounds per square inch
- Surface Finish
- 63.0 microinches threads
- Material
- Steel comp 301 overall or steel comp 302 overall or steel comp 303 overall or steel comp 303F overall or steel comp 304 overall or steel comp 304L overall or steel comp 305 overall or steel comp 308 overall or steel comp 309 overall or steel comp 309S overall or steel comp 310 overall or steel comp 310S overall or steel comp 314 overall or steel comp 316 overall or steel comp 316L overall or steel comp 317 overall or steel comp 321 overall or steel comp 323 overall or steel comp 324 overall or steel comp 347 overall or steel comp 348 overall or steel comp 385 overall or steel comp 384 overall
- Surface Treatment
- Passivate overall
- Surface Treatment Document and Classification
- QQ-P-35 fed spec single treatment response overall
- Thread Series Designator
- UNC
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.