Bel | Stock Check | Contact Us Search keyword or part number Home Markets Products A bout Us Literature News Sales Contacts Contact Us Accessories - Screwlocks Products D-subminiature A ccessories - Screwlocks Features | Part Numbers Features Screwlocks Screwlocks are designed to retain the same size mated connectors together or to secure the connector to a rack/panel. Screwlocks may be used on plugs or sockets. Female screwlocks consists of one #4-40 hole in the top, two flat washers to accommodate different panel thicknesses, one lockwasher, and one #4-40 nut. Military female screwlocks include three flat washers. Male screwlocks consit of one #4-40 slotted screw and a spring tension clip. Different sizes accommodate the various connector flange sizes and types of backshells or hoods (if applicable). Two screwlocks are required per connector. Military screwlocks meet all rquirements of MIL-C -24308. Materials Commercial Screwlock Assemblies Male Screwlock Assembly: C lip and screw are steel with zinc plating and yellow chromate finish - RoHS parts have clear chromate in place of yellow chromate. Female Screwlock Assembly: Washers (2), lockwashers, hex nuts, and nuts are steel with zinc plating and yellow chromate finish. RoHS parts have clear chromate finish. M24308 Military Screwlock Assemblies Male Screwlock Assembly: C lip and screw are steel with cadmium plating and yellow chromate finish. Female Screwlock Assembly: Washers (3), lockwashers, hex nuts, and nuts are steel with cadmium plating and yellow chromate finish. back to top Part Numbers Male Screwlocks - Ordering Information Shell Size A Positions in B mm in mm E A B C D 9 15 25 37 50 COMMERCIAL RoHS Version D20419-0 D20419-40 0.250 6.35 0.033 0.84 P/S P/S S D20419-16 D20419-46 0.250 6.35 0.048 1.22 S* S* P/S* P/S* D20419-21 N/A 0.281 7.13 0.059 1.50 P* P* D20420-0 N/A 0.250 6.35 0.033 0.84 S D20420-12 D20420-42 0.281 7.13 0.048 1.22 P/S* D20420-15 N/A 0.281 7.13 0.059 P* S MILITARY MIL-C-24308 M24308/25-9F Per MIL Spec M24308/25-10F Per MIL Spec Note: P=Plug, S=Socket P/S P/S P/S P/S P/S *Indicates used with Junction shell Female Screwlocks - Ordering Information Shell Size A Positions in E A B C D mm 9 15 25 37 50 COMMERCIAL RoHS Version D20418-2 D20418-42 0.312 7.92 P/S P/S P/S P/S P/S D20418-39 N/A 0.628 15.95 P/S P/S P/S P/S P/S MILITARY MIL-C-24308 M24308/26-1F Per MIL Spec P/S P/S P/S P/S P/S M24308/26-2F Per MIL Spec P/S P/S P/S P/S P/S Note: P=Plug, S=Socket back to top Markets Products About Literature Environmental Initiatives News Sales Contacts Employment Contact Us Sitemap Rep Portal (c) 2015 Cinch Connectors Legal All Rights Reserved Sales Terms & Conditions European Sales Terms & Conditions Purchasing Terms & Conditions Stock Check Bel Fuse Fibreco GigaCom Cinch Connectivity Solutions Sign Up for C inch News