Products » D-subminiature » Ac cessories – Screwlocks
Accessories – 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 Asse mblies
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.
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Part Numbers
Male Screwlocks – Ordering Information
Shell Size A B E A B C D
Positions in mm in mm 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 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*
MILITARY MIL-C-24308
M24308/25-9F Per MIL Spec P/S P/S P/S P/S
M24308/25-10F Per MIL Spec P/S
Note : P=Plug, S=Socket *Indicates used with Junction shell
Female Screwlocks – Ordering Information
Shell Size A E A B C D
Positions in 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
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