Skidmore Bolt Testing Equipment
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Skidmore Bolt Testing Equipment Results Loading

The Skidmore Model MZ, a blue hydraulic load cell with a round gauge and two metal handles, is shown isolated on a white background.

Skidmore Model MZ
Skidmore Model HS hydraulic load cell, blue, with round center opening and analog pressure gauge on top.

Skidmore Model HS
Skidmore K

Skidmore Model K

Skidmore-Wilhelm offers a full line of bolt tension measuring devices that are used for installations performed with manual, electric, pneumatic, and hydraulic wrenches.

Bolt testing is required in applications such as steel buildings, bridges, and similar structures, performed for two main purposes:

We stock Skidmore bolt tension measuring devices, which are available for purchase or rent, including these models:

  • Model MZ (for 1/2″ to 1-1/4″ bolt diameters)
  • Model HS (for 3/4″ to 1-1/2″ bolt diameters)
  • Model K (for 1-1/4” to 2-1/2” bolt diameters)

We offer the largest inventory of bushings, plates, reaction bars and other accessories — we stock more accessories and parts than the manufacturers!

Bolt Testing Devices

There are two primary manufacturers of bolt tension calibrators, Skidmore-Wilhelm and Norwolf Tool Works. Both manufacturers produce excellent quality products that are cost competitive and offer many similar features. There are some features that set the manufacturers apart, but ultimately the choice comes down to one of personal preference and what fits the individual needs of a company or project.

To Get Started:

For information about Skidmore rental and purchase options, parts availability or related requests, please complete the form on this page:

Request a Quote

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Trusted By:

For All Your Skidmore Bolt Testing Needs, Turn to GWY

Extensive Inventory
We offer the full line of Skidmore bolt testers, and we stock more Skidmore parts than Skidmore.

Partnership Mindset
Since 1975, providing long-term value through customer service has been our top priority.

On-Site Repairs
We have the equipment, parts inventory and experience to service your tools and equipment.

Full-Service Expertise
Our team has the knowledge, expertise and drive to help you deliver absolute accuracy at every turn.

Testimonials

Kind words from our customers:

  • “It was a great pleasure working with GWY. They go above and beyond to help with what we needed. Don was very quick on getting what we needed out to us to complete the job. Very proud to be a GWY customer.”

    Bobby
    HB Metal Builders

  • “I have enjoyed working with GWY. Their people know their product well. Their prompt response and delivery of the product is as good as any service Ogeechee Steel has ever had the pleasure of doing business with.”

    David
    Ogeechee Steel

  • “From choosing the right equipment for each job’s unique requirements to problem solving in the field, GWY is always willing to go out of the way to find a solution. Mix that customer service in with their technical expertise and easy-to-use tools, they really help make bolt up easy.”

    Jake
    South Capital Bridgebuilders

  • “GWY’s parts inventory and response is top notch. You can expect prompt, respectful, knowledgeable answers to questions and full cooperation when you need it. Truly a mark of a reputable company with a good team.”

    Ron
    GEM Inc.

FAQs

Your questions, answered.

Do you bill by the month for rentals?

We typically bill by the week but we’re working on a monthly option.

Do you sell tools outside the country?

Yes, we provide tools all over the world.

Are the same size sockets interchangeable between different tools?

Typically, the answer is no but there are exceptions.  The only interchangeable sockets for current model shear wrenches are between the GV-301ZA and the GVC-301EZ. The Older models like the S-60EZA share sockets with their newer models like the S-61EZ. The same is true for the S-90EZ and GS-91EZ as well as the S-110EZ and the GS-111EZ.

There are a few TN tools that share sockets with each other such as the TN-20EZ and the TN-22EZ as well as the TN-30EZ and the TN-33EZ.

The GNR series can share sockets with some of the TN tools. The GNR-31E, 51E, & 81E can use the TN-20EZ/22EZ bar sockets instead of impact sockets. The GNR-121E can use the bar sockets of the TN-24EZA and the GNR-211E can use the bar sockets of the TN-30EZ/33EZ. The GNR’s can also share impact sockets that have their correct drive size.

Are there any used tools for sale?

We do have some used tools for sale but the selection of used is limited.

What do I do with my rental after I am done with it?

Verify everything is back in the case and send it back to GWY at 217 Forest Rd., Greenfield, NH 03047 in the preferred method of your choice.

My tips are not ejecting from the inner socket. Why?

This can happen for several reasons. It could be that your inner socket is worn and is not functioning properly. It could be a worn ejector spring or ejector pin. If you are installing galvanized bolts you may need an oversized inner socket to fix this problem. It could be that the latch and ejector system inside the tool is worn.

Is there a warranty on your tools?

1-year manufacturers defect warranty on new tools.

What is the turnaround time for repairing/recalibrating my tools?

When we receive the tools, we typically have a one to two day turnaround time before shipping back to the customer.

Buy, Rent, or Repair with GWY

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