Hafren KMPN-GEO Case Hardened Steel Geomet ® Kinmar ® Permanent Nuts
Product overview
Hafren KMPN-GEO Case Hardened Steel Geomet ® Kinmar ® Permanent Nuts
Hafren KMPN-GEO Case Hardened Steel Geomet ® Kinmar ® Permanent Nuts are the ultimate high security patented one-way nuts. This innovative Hafren KMPN-GEO design requires a matching driver socket for installation, ensuring consistent torque levels and allowing re-torquing if required. Unlike standard shear nuts, these Steel Geomet Kinmar Nuts provide full surface protection with no exposed metal, leaving a clean, professional finish.
- Also stocked in: Case Hardened Steel Zinc Plated (CR-3) and A2 Stainless Steel
- Kinmar ® Permanent 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: KMPN08-GEO, KMPN10-GEO, KMPN12-GEO.
Hafren KMPN-GEO – Features
Material: Case Hardened Steel (C10C interannealed)
Heat Treatment: Case Hardened
Finish: Geomet ® 500B
Part Numbers & Driver Sizes
| Size | Nut Part No | Driver Part No |
| M8 | KMPN08-GEO | KM08P |
| M10 | KMPN10-GEO | KM10P |
| M12 | KMPN12-GEO | KM12P |
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 KMPN-GEO Case Hardened Steel Geomet ® Kinmar ® Permanent 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 |
| KMPN08-GEO | M8 | KM08P | 16.1 mm | 7.3 mm | 100 |
| KMPN10-GEO | M10 | KM10P | 20.1 mm | 9.2 mm | 100 |
| KMPN12-GEO | M12 | KM12P | 24.2 mm | 10.6 mm | 100 |