Hello ! I am into manufacturing of small mechanical components & lately have been exploring option to start producing Double thread screws. But i am not sure of it's application. It will be great if someone can help with possible application areas of the same. Thanks ! Cheers ! Sid Hello ! I am into manufacturing of small mechanical components & lately have been exploring option to start producing Double thread screws. But i am not sure of it's application. It will be great if someone can help with possible application areas of the same. Thanks ! Cheers ! Sid Google twinfast screws.