Hexagon Nylon Locking Nuts, also known as DIN 985 nuts, are a type of fastener commonly used in various applications where vibration resistance and secure fastening are essential.
The nylon insert is usually located within the nut and serves as a locking mechanism. It creates friction against the mating threads, providing resistance to vibration and preventing the nut from loosening unintentionally.
These nuts are particularly useful in applications where there is a risk of vibration that could cause standard nuts to loosen over time. The nylon insert helps maintain a secure connection.
Frank's Fasteners provides Hexagon Nylon Locking Nuts in A2/304 Stainless Steel, A4/316 Stainless Steel and Zinc Plated Steel.
Additional material and finishes can be sourced, don't hesitate to get in touch with us with your enquiry.Â
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| Diameter | Pitch | Depth of Nut | Across Flats |
| M3 | 0.5mm | 4mm | 5.5mm |
| M4 | 0.7mm | 5mm | 7mm |
| M5 | 0.8mm | 5mm | 8mm |
| M6 | 1.0mm | 6mm | 10mm |
| M7 | 1.0mm | 7.5mm | 11mm |
| M8 | 1.25mm | 8mm | 13mm |
| M10 | 1.5mm | 10mm | 17mm |
| M12 | 1.75mm | 12mm | 19mm |
| M14 | 2mm | 14mm | 22mm |
| M16 | 2mm | 16mm | 24mm |
| M18 | 2.5mm | 18.5mm | 27mm |
| M20 | 2.5mm | 20mm | 30mm |
| M22 | 2.5mm | 22mm | 32mm |
| M24 | 3.0mm | 24mm | 36mm |
| M27` | 3.0mm | 27mm | 41mm |
| M30 | 3.5mm | 30mm | 46mm |
| M33 | 3.5mm | 33mm | 50mm |
| M36 | 4mm | 36mm | 55mm |
| M39 | 4mm | 39mm | 60mm |
| M42 | 4.5mm | 42mm | 65mm |
| M45 | 4.5mm | 45mm | 70mm |
| M48 | 5mm | 48mm | 75mm |
| M52 | 5mm | 52mm | 80mm |
| M56 | 5.5mm | 56mm | 85mm |
| M60 | 5.5mm | 60mm | 90mm |
| M64 | 6mm | 64mm | 95mm |