Product Information
Zafety Lug Lock® Overview
Simple, ingenious design reduces the risk of wheel loss by securing adjacent wheel nuts together and minimizing their ability to rotate.
Zafety Lug Lock® is a wheel nut retainer — not just a wheel nut indicator. Each unit is installed over two adjacent nuts after proper torquing, creating resistance that helps prevent loosening from vibration and temperature cycling.
Wheel nuts can be torque checked without removing the Zafety Lug Lock® — saving maintenance time and keeping wheel-end checks consistent across your fleet.
Zafety Lug Lock™ is a Registered Trademark of Tafcan Consulting Ltd.
Watch the installation process — each unit can be fitted in seconds by hand or with the optional tool.
Why Choose Zafety Lug Lock®?
- Fast and easy to install and remove — flexible, simply fits over two adjacent nuts. Can be installed or removed in seconds by hand or with the optional hand tool.
- Lug nuts can be torque checked without removing the Zafety Lug Lock® — saving man-hour costs of removing and reinstalling.
- Reusable — can be reinstalled after removal for wheel-end servicing, or transferred to similar applications if equipment is taken out of service.
- Engineered to withstand extreme temperatures — flexibility ensures fast installation and product durability from -40°C (-40°F) to +160°C (+320°F).
- Maintains nut torque even if the wheel surface is compromised by loose paint, rust, or if nuts are under-torqued.
- Multiple sizes and colours to meet every need — custom corporate colours available on special order.
- Reduces the risk of wheel-off accidents and wheel hub, stud, and rim damage.
- Provides a clear visual check in all weather conditions — quick inspection at a glance.
- Independent testing to ensure product claims are fully supported by reliable, arms-length third-party experts.
- Field tested at high and low rotation speeds on all types of surfaces.
- 2-year limited Manufacturer's Warranty — warranted against manufacturing defects.
- Millions sold worldwide. Patented and Registered Trademark.
- 2013 Ernest C. Manning Innovation Award — recognition of simple but effective design meeting a marketplace need.
- Cost effective — for less than the cost of an oil change, increase the safety of your vehicle and reduce the risk of wheel-off incidents for years to come.
- Recyclable.
Downloadable Resources
Download measuring instructions, installation guides, and product documentation.
Measuring Instructions
How to measure stud spacing and nut size to find the correct product.
Download PDFInstallation & Removal
Step-by-step guide for installing and removing Zafety Lug Lock®.
Download PDFFeatures Summary
Complete overview of Zafety Lug Lock® features and specifications.
Download PDFTorque Check Bulletin
Product update on torque checking procedures with Zafety Lug Lock®.
Download PDFSizing Guide — Find Your Fit
Select the correct size based on stud center-to-center spacing and nut size. Use the measuring instructions to determine your requirements, or contact the team for sizing help.
| Studs | Spacing (Metric) | Spacing (US) | Nut Size (Metric) | Nut Size (US) | Applications |
|---|---|---|---|---|---|
| 10 | 88.9 mm | 3 1/2" | 33 mm | 1 5/16" | Large Trucks & Trailers — Ford, Mack, Freightliner, Kenworth, Western Star, International, Peterbilt, Utility, Great Dane, Max Atlas, etc. Public Utility Trucks, Ready Mix Trucks, Large Waste & Recycling Trucks |
| 10 | 88.9 mm | 3 1/2" | 32 mm | 1 9/32" | Some Large Trucks & Trailers, IVECO |
| 8 | 111.1 mm | 4 3/8" | 38.1 mm | 1 1/2" | Some large tanker trailers and trailers |
| 10 | 69.9 mm | 2 3/4" | 33 mm | 1 5/16" | Low profile (low loader) trailers and flatbed trailers |
| 10 | 69.9 mm | 2 3/4" | 32 mm | 1 9/32" | Low profile (low loader) trailers and flatbed trailers |
| 10 | 104.8 mm | 4 1/8" | 33 mm | 1 5/16" | UK/EU — Tractor Trailers, Off-Road Applications. AU — Residential Garbage Trucks, ISUZU, HINO |
| 10 | 104.8 mm | 4 1/8" | 32 mm | 1 9/32" | UK/EU — Tractor Trailers. AU — Residential Garbage Trucks, ISUZU, HINO |
| 8 | 104.8 mm | 4 1/8" | 30 mm | 1 3/16" | UK/EU — Lift axle on Tractor Trailers |
Ready to Get Started?
Free trials may be available. Contact us to discuss your fleet requirements or find a distributor in your region.