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Internet # 206298616

Model # MSJ-20

Store SKU # 1001478665

40000 lb. Capacity Mechanical Screw Jack

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  • Solid steel construction resists daily wear and tear
  • Supports 40,000 lbs. uniform loads for high-quality action
  • Ideal for industrial applications to ensure optimal results
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Product Details

About This Product

The Mechanical Screw Jack is a great addition to maintenance facilities. The unit is constructed of steel for the utmost strength when lifting and holding large oversized items for long periods of time. The included handle is removable for simple storage in tight spaces.


  • Mechanical screw jack is for loading dock equipment for ideal operation
  • Acme thread post that supports the load is for maximum efficiency
  • No seals will leak and will not drift down even after an extended period of time
  • Use in industrial applications for optimal results
  • Uniform capacity (lbs.): 40000
  • Lowered height (in.): 12-3/4
  • Raised height (in.): 19-13/16
  • Travel (in.): 7-1/4
  • Base Diameter (in.) 4-7/8
  • Top Pad (in.) 2-11/16
  • Return Policy
  • California residents
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Product Information

Internet # 206298616

Model # MSJ-20

Store SKU # 1001478665

Additional Resources

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Dimensions: H 35.75 in, W 6.3125 in, D 8.4375 in


Product Depth (in.)

8.4375 in

Product Height (in.)

35.75 in

Product Width (in.)

6.3125 in


Color Family




Product Weight (lb.)

32 lb





Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty


Questions & Answers

Q:What is the fully extended height?
by|Mar 14, 2018
1 Answer
Answer This Question

A:  Raised Height on this jack is 19-13/16. Thank you.

by|Feb 26, 2019
    1 found this answer helpful
    Showing 1-1 of 1

    Customer Reviews

    3.7 out of 5

    • 3.7 out of 3 reviews
    • 100% recommend this product
    Filter by:
    Showing 1-3 of 3 reviews
    I payed for two, they sent me two 20 tons...
    I payed for two, they sent me two 20 tons not the two 40 tons that I payed for
    • Verified Purchase
    Works great!!!...
    Works great!!!
    • Verified Purchase
    I wanted a jack like this to augment my Big Red 30 Ton Hydraulic Jack for redoing some substandar...
    I wanted a jack like this to augment my Big Red 30 Ton Hydraulic Jack for redoing some substandard piers in my crawlspace. There were no directions and you can't tell by looking at the picture, but you twirl the green end with your finger until the jack gets to the snug position. Then you can jack with the handle just like a hydraulic jack until the desired height is reached. To lower, you lift and turn that knurled knob 180 degrees and then it jacks down. So far this jack has been completely satisfactory. I was surprised at how little effort it took to raise the beam.
      • Recommended
      5 found this review helpful
      Showing 1-3 of 3 reviews