Construction-use non-loosening screws and nuts, sample support available!
Successfully eliminated loosening permanently with our safety bolts and nuts! Sample availability is possible! We are sharing photos of examples where they are used in solar panels!
The "Yurumanzo (W-V-LOCK)" is a safety bolt and nut that successfully eliminates loosening permanently by adopting a ratchet mechanism between the bolt, nut, and washer, and further incorporating protrusions on the bottom surface of the washer that bite into the workpiece. All five units tested in the vibration loosening comparison test conducted by the Japan Quality Assurance Organization passed without loosening for over 17 minutes. 【Features】 ■ The bolt and washer are connected using a ratchet mechanism, with several protrusions on one side of the seating surface. ■ The protrusions bite into the fastened object in a wedge shape, preventing the washer from rotating and providing a loosening prevention effect for the entire screw. ■ No loosening occurs even under strong vibrations or long-term use. ■ A high safety and durability loosening prevention mechanism for screws. ■ Patent obtained. *For details, please request materials or view the PDF data from the download. *If you would like a sample, please contact us.
- Company：マルナカ
- Price：Other
