These are custom socket shoulder screws made using grade 2 steel material with phos finish and a thread locking patch.  Measuring 6-32 X .393″ with a shoulder at .080″ and head height at .125″ this custom socket shoulder screw is manufactured overseas in increments of 100,000 pieces to be released to our long time customer on an as-needed blanket purchase order basis.  Initial lead time for the first release is typically 120-150 days from order confirmation.  When needed, we can provide a print with dimensions and tolerances for the customer to approve prior to production start.