Production of these custom internally and externally threaded studs was run at approximately 10,000 pieces, in medium carbon grade 5 equivalent steel material.  The specific hardness requirement was set to 25-35 HRC.  The custom threaded studs had an overall length of .75" +/.02" with a 45-50 degree tapered point on one side.  Slotted drives were incorporated at both sides for optimal flexibility in our customer's application.  1/2-13 thread was rolled on the outside and 1/4-20 thread tapped all the way through.