- Thread Class
- 2A
- Thread Direction
- Right-hand
- Thread Length
- 0.875 inches minimum
- Fastener Length
- 2.938 inches minimum and 3.000 inches maximum
- Head Style
- Hexagon
- Head Height
- 0.195 inches minimum and 0.211 inches maximum
- Width Between Flats
- 0.489 inches minimum and 0.500 inches maximum
- Locking Feature
- Patch threads or pellet threads
- Nominal Thread Diameter
- 0.312 inches
- Features Provided
- Finished head
- Thread Quantity per Inch
- 18
- Minimum Tensile Strength
- 150000 pounds per square inch
- Hardness Rating
- 33.0 rockwell C minimum fastener and 39.0 rockwell C maximum fastener
- Material
- Plastic polyamide locking feature
- Material
- Steel fastener
- Material
- Steel overall
- Material Document and Classification
- Sae J429, grade 8 assn std single material response fastener or astm A354, grade bd assn std single material response fastener
- Surface Treatment
- Zinc fastener and chromate fastener
- Surface Treatment Document and Classification
- Astm B633 ty 2 sc 3 assn std single treatment response fastener
- 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.