These custom black thumb screws with diamond knurl were manufactured to our customer's drawing at 2,000 pieces using low carbon steel material with black oxide finish. The head diameter is set to .313" +/- .005" and the thread length is .375" with the same tolerance. 6-32 thread was rolled rather than cut on these parts. Full certs were provided with the parts.
Large quantities of these custom made black thumb screws would be best supplied on a 12 month blanket purchase order basis. The Blanket Order concept allows the customer to access the large quantity cost savings without paying upfront for the entire large quantity order. Instead we take on the burden of carrying the bulk inventory and only release the parts as needed, or often on a pre-scheduled basis provided by the customer.