AMPLIMITE D-Sub Connector Series HDE and HDP Male Screw Retainers. AMPLIMITE male screw retainer kits for for AMPLIMITE HDE and HDP series Metal-Shell d-sub connectors. Each of these male screw retainer kits consists of 2 male screws made from steel with a zinc plated clear or yellow chromate and 2 stainless steel retaining clips. The thread size of these male screw retainer kits is 4-40. Stock numbers ; 450-9208 450-9208 and ; 717-4549 717-4549 have a yellow chromate finish and stock numbers ; 717-4498 717-4498 and ; 782-6269 782-6269 have a clear chromate finish. The screw lengths are as follows: Stock number ; 450-9208 450-9208 - 5.59 mm Stock number ; 717-4549 717-4549 - 5.08 mm Stock number ; 782-6269 782-6269 - 5.08 mm Stock number ; 717-4498 717-4498 - 5.59 mm