Skidmore-Wilhelm bolt tension calibrators have been the industry standard since the 1950s. These units are frequently used to perform pre-installation verification and rotational capacity tests on both TC and hex-head bolts.
Calibration is essential for maintaining accuracy, safety, and compliance on every jobsite. Our in-house calibration services are performed by expert technicians using a high-capacity system. Each Skidmore unit is thoroughly inspected and tested to ensure it meets manufacturer specifications that delivers reliable performance in the field.
Benefits of Our Calibration Services:
• Accurate Results – Repeatable measurements within specified tolerances for reliable bolt testing.
• Quick Turnaround – Prompt calibration and return services to help minimize downtime and costly delays.
• Calibration Documentation – Certificates provided for quality assurance, traceability, and regulatory compliance.
• Supported Models – Calibration services are available for several Skidmore-Wilhelm models.
To get started:
1. Complete & Submit Form
Fill out the calibration request form with your information and tool details.
2. Send Us Your Tool
Ship or drop your off tool at our facility:
GWY, LLC
Attn: Calibration Department
217 Forest Road, Greenfield, NH 03047
*Important: Do not ship any sockets or additional parts with the tool. Please include your contact information including name, company, phone number, and email, so we can process your calibration quickly.
3. Assessment & Quote
Our technicians inspect your tool to assess any needed repairs and provide an estimate before performing any service.
4. Calibration & Testing
Tools are inspected, calibrated, and tested to ensure it meets industry and tool specifications.
5. Return & Documentation
Your tool is returned to you with a certificate of calibration, ready for immediate use.
Fast Turnaround
Our average turnaround time for tool calibration is 1 to 3 days.
Partnership Mindset
Since 1975, providing long-term value through customer service has been our top priority.
In-House Repairs
We have the equipment, parts inventory and experience to quickly and accurately service your tools.
Full-Service Expertise
Our team has the knowledge, expertise and drive to help you deliver absolute accuracy at every turn.
Start by contacting us or fill out our online form for a custom quote. Pricing depends on your specific tool model.
Ship or drop your equipment off at our facility. For urgent needs and quick turnaround, we recommend shipping through UPS.
We test tools across their full torque range and perform necessary adjustments to ensure it meets all standards.
Receive your tool and an official calibration certificate that includes an estimated date for when your tool should be calibrated next.
Calibration fees vary depending on the tool and are a one-time set price unless other repairs are needed. Customers are responsible for shipping costs. The quickest way to find out the cost for calibrating your Skidmore is to fill out our calibration request form below.
We know that going even just a few days without your tools can be bad for business. That’s why we pride ourselves on our rapid turnaround times. Average turnaround is typically just a few days, but we can provide same-day calibration and return shipping for urgent needs.
Submit your information and our team will be in touch →
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.”
“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.”
“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.”