- Thread Class
- 3A
- Thread Direction
- Right-hand
- Thread Length
- 0.429 inches minimum and 0.563 inches maximum
- Fastener Length
- 0.500 inches minimum and 0.563 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.146 inches minimum and 0.166 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Features Provided
- Finished head
- Thread Quantity per Inch
- 28
- Material
- Copper alloy 464 overall
- Material Document and Classification
- QQ-B-637 fed spec single material response overall
- Surface Treatment
- Tin overall
- Surface Treatment Document and Classification
- Ams 2408.2 assn std single treatment response overall
- Thread Series Designator
- UNF
- Specification/Standard Data
- 80205-NAS467 professional/industrial association 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.