Skidmore Model MZ
Skidmore-Wilhelm has set the industry standard for testing bolt tension since the 1950s. Engineers, inspectors, and ironworkers rely on Skidmore devices to verify that bolted connections meet precise tension requirements in steel buildings, bridges, and other high-strength structural projects.
The Skidmore Model MZ is the most compact and adaptable bolt tension calibrator, designed to measure tension on TC and hex bolts ranging from 1/2″ up to 1-1/4″ in diameter.
Capacity: 126,000 lb. of Bolt Tension
For more information, read our blog:
A Practical Guide to Skidmore-Wilhelm Bolt Tension Calibrators
The Model MZ Bolt Tension Calibrator verifies:
- Fasteners meet minimum bolt tension specifications.
- Impact wrenches are properly calibrated to achieve proper tension in the bolted joint.
- Tension-control fasteners shear off at the correct tension.
- Direct Tension Indicating (DTI) washers are indicating at proper tension
- Bolting crew understands how to achieve proper tension in all types of fasteners
- You have the right installation tools and equipment.
Capacity: 126,000 lb. of Bolt Tension
Specifications
| Skidmore MZ | Minimum Bolt Length | |
|---|---|---|
| Bolt Diameter | Regular Bolt | Short Bolt |
| 1/2″ | 2″ | 1 – 1/4″ |
| 5/8″ | 2 – 1/4″ | 1 – 1/2″ |
| 3/4″ | 2 – 1/2″ | 1 – 3/4″ |
| 7/8″ | 2 – 3/4″ | 2″ |
| 1″ | 3″ | 2 – 1/4″ |
| 1 – 1/8″ | 3 – 1/4″ | 2 – 1/2″ |
| 1 – 1/4″ | 3 – 1/2″ | 2 – 3/4″ |
For more information, read our blog: A Practical Guide to Skidmore-Wilhelm Bolt Tension Calibrators.
The Model MZ can be used with our adapter kits to test the following bolts sizes:
| Imperial | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ | 1 – 1/8″ | 1 – 1/4″ |
| Metric | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 |
What’s in the Case? | Skidmore Overview
Take a quick look at what comes with a Skidmore-Wilhelm Bolt Tension Calibrator and its essential accessories. Packed inside the case, you’ll find:
- Skidmore-Wilhelm bolt tension calibrator unit
- Accessory bag with C-clip and fasteners
- Hex-bit screwdriver
- Instruction manual
- Calibration certificate
- Structural Bolting Handbook
Documents
Helpful resources:
Instruction Manual
Dimensioned Drawing
Testimonials
Kind words from our customers:
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“GWY has been a great company to work with. My company requires receipts for all credit card purchases and GWY has made this very easy. With rental equipment this usually isn't the easiest to deal with but they have made this process very smooth. I get a weekly receipt emailed to me without having to ask for it. They also have great customer service and are very helpful and friendly. Would definitely recommend.”
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“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.”
