Hafren SECURITY Kinmar® permanent nut Stainless steel A251083
Hafren SECURITY Kinmar® permanent nut Steel Zinc plated11438
Hafren SECURITY Kinmar® permanent nut Steel Zinc flake Cr(VI+)free - ISO 10683 flZnnc11439
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 a shear point and leaving no unplated surfaces, it leaves a clean smart finish.