Case Hardened Steel Bright Zinc Plated Kinmar® Permanent Nut

The ultimate high security patented one-way nut.  
 
This patented permanent nut requires a matching driver socket for installation giving you guaranteed torque levels and can be re-torqued if required. Not governed by shear point and leaving no unplated surfaces, it leaves a clean smart finish.  
 
Also stocked in; case hardened steel zinc plated (CR-3) and Geomet®  
Kinmar® Permanent drive is also stocked in bolt form M8 x 25mm / M8 x 40mm  
Other materials and finishes available to order, subject to minimum order quantities

Find out more about Hafren