Jack Screws

4-40 Jack Screw For "D" Subminiature Connectors

Standard Jack Screws -  Equivalent to AMP, CANNON & TRW Jack Screws. 

Sems Jack Screws - Feature captivated helical spring lockwashers that speed and simplify use. 

Slotted Head - For screw driver assembly.

Jack Screw with Nylon Patch - ideal for applications that require thread locking.

Knurled Jack Screw -  Allow for hand tighting, no tooling required.

Availability is from stock through Keystone's Global Distributor Network. Application engineering services are available to meet special customer requirements.

Refer to Keystone's Product Design Guide for our complete product offering and specifications.


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