Case Hardened Steel Zinc Plated Kinmar® Permanent Machine Screw

The ultimate high security patented one-way bolt.  
 
This patented permanent bolt 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)  
Other materials and finishes available to order, subject to minimum order quantities

Find out more about Hafren