Call us at 815-675-0451

Jack Screws

Minic Precision Inc. specializes in the precision machining of various geometries of custom jack screws. Some of the many styles we offer are internally threaded, externally threaded, knurled and over molded. We use state of the art Swiss Screw Machines like Tornos, Bechler and Citizen to manufacture our custom jack screws.

We manufacture our jack screws from hardened materials which can effectively withstand extreme loads. The lifespan of these screws is dependant on whether or not they are properly threaded. Burr-free, small micro threads are produced quickly through the thread whirling process. Our CNC Swiss turning machines are capable of carrying out the delicate thread whirling process.

Jack screws are commonly used to mount electronic connectors. They are a vital component to electrical assemblies because they simplify installation and ensure securely fastened construction. Threaded jack screws maintain strong and rigid mounts during vibrations. Over molded jack screws provide a reliable, solid and grounded interface for video adapter assemblies. vv

Jack screws are available with diameters ranging from 0.010 to 1.00 inches and lengths ranging from 0.010 to 10.00 inches. Other jack screw specifications include tight tolerance values of ± 0.0001 inches and surface finishes to 16 micro. The processes employed to machine our jack screws are CNC Swiss turning, CNC milling, cold heading and CAM Swiss automatic lathing.


Types Available

  • Motor gears
  • Worm gears
  • Press fit
  • Drive gears
  • Precision ground
  • Milled


0.010" to 1.00"

Surface Finish

to 16 micro


0.010" to 10.00"


to ± 0.0001"


  • Aircraft Aluminum
  • Alloy Steel
  • Aluminum
  • Beryllium Copper
  • Brass
  • Bronze
  • Carbon Steel
  • Copper
  • Nickel
  • Nickel Silver
  • Plastics
  • Stainless Steel
  • Tellurium Copper
  • Titanium
  • Tungsten

More Information

Equipment Used

  • Tornos Swiss Automatic Screw Machines
  • Bechler Swiss Automatic Screw Machines
  • Citizen CNC Swiss Turning Machines

Processes Used

  • CNC Swiss turning
  • CAM Swiss Automatic Lathes
  • CNC Milling
  • Cold Heading


From prototyping to production runs of all quantities

Secondary Operations

  • Broaching
  • Grinding
  • Heat Treating
  • Plating
  • Tapping
  • Thread Rolling
  • Tumbling

Quality Control

  • Statistical Process Control (SPC)

Additional Capabilities and Services

Let us quote your project

request quote

7706 Industrial Drive Suite K

Spring Grove, IL 60081

Phone: 815.675.0451

Fax: 815.675.0452

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