These are dual threaded specialty aerospace threaded studs made to AN126288 specifications, with one side at 5/16-24 thread pitch and the other at 5/16-18 non standard pitch. We supplied this part to our aerospace customer at approximately 300 pieces per order. AMS 6322 steel was used as the material, heat treated to 26-32 rockwell hardness and Cadmium plated to AMS 2400 specification. Material, heat treat, and plating certs were provided with the parts. All manufacturing and secondary service aspects of the production was done domestically within United States. The lead time was at approximately 8-10 weeks from order placement due to heat treat and cad plating time requirements.