Hafren KMRN-Z Case Hardened Steel Bright Zinc Plated Kinmar ® Removable Nuts
Product overview
Hafren KMRN-Z Case Hardened Steel Bright Zinc Plated Kinmar ® Removable Nuts
Hafren KMRN-Z Case Hardened Steel Bright Zinc Plated Kinmar ® Removable Nuts are high-security, patented two-way nuts engineered for superior tamper resistance and long-lasting performance. This advanced Hafren KMRN-Z design features a unique segment-shaped profile that requires a matching driver socket for installation and removal, ensuring maximum security and convenience. These Zinc Plated Kinmar Removable Nuts offer a smooth, professional appearance with no unplated surfaces, providing both functionality and visual appeal.
- Also stocked in: Geomet ® and A2 Stainless Steel
- Kinmar ® Removable drive is also available in bolt form M8 x 25mm / M8 x 40mm
- Other materials and finishes available to order, subject to minimum order quantities
Part Numbers: KMRN05-Z, KMRN06-Z, KMRN08-Z, KMRN10-Z, KMRN12-Z.
Hafren KMRN-Z – Features
Material: Hardened Steel (C10C interannealed)
Heat Treatment: Case Hardened
Finish: Bright Zinc Plated (CR-3), 5 μm minimum
Part Numbers & Driver Sizes
| Size | Nut Part No | Driver Part No |
| M5 | KMRN05-Z | KM05R |
| M6 | KMRN06-Z | KM06R |
| M8 | KMRN08-Z | KM08R |
| M10 | KMRN10-Z | KM10R |
| M12 | KMRN12-Z | KM12R |
Hafren Security Fasteners
Hafren Fasteners manufacture and supply security & tamper resistant fasteners; special headed screws, nuts & bolts. Their solutions are either permanent, or removable only by using a matching driver tool. They design and supply a wide range of security fasteners including bespoke made to measure security fasteners. If they don’t have what you need they’ll make it just the way you want.
Security: The need to safeguard against theft and vandalism is increasingly an essential part of many design specifications.
Safety: Complying with stringent Health & Safety Law, their fasteners keep the public safe.
Aesthetics: Security fasteners are not only secure and vandal-resistant, but aesthetically pleasing to the eye complementing their surrounding environment
For Additional Information on Hafren KMRN-Z Case Hardened Steel Bright Zinc Plated Kinmar ® Removable Nuts, please consult the Technical Data Table or PDF Files below.
*Technical Data subject to change without notice.
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Contact us for enquiries concerning this and all other products: +44 (0) 1744 762 929
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+44 (0)1744 762 929Technical Data
| Part Number | Size | Driver Part Number | Width (A) | Height (B) | Box Quantity |
| KMRN05-Z | M5 | KM05R | 12.1 mm | 5.6 mm | 100 |
| KMRN06-Z | M6 | KM06R | 12.1 mm | 5.6 mm | 100 |
| KMRN8-Z | M8 | KM08R | 16.1 mm | 7.3 mm | 100 |
| KMRN10-Z | M10 | KM10R | 20.1 mm | 9.2 mm | 100 |
| KMRN12-Z | M12 | KM12R | 24.2 mm | 10.6 mm | 100 |