Cap Nuts serve various purposes, offering a rounded cap or cover for exposed threads. The capped head of these nuts serves the dual function of safeguarding screws and enhancing the overall aesthetic by providing a polished appearance to fastenings.
Frank's FastenersĀ providesĀ SocketĀ Cap Head Screws in A2/304 Stainless SteelĀ and 12.9 High TensileĀ Steel.
Additional material and finishes can be sourced,Ā don't hesitate to get in touch with us with your enquiry.Ā
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| Diameter | Pitch | Height | Across Flats | Min thread depth |
| M3 | 0.5mm | 4.5mm | 5.5mm | 3.5mm |
| M4 | 0.7mm | 5.5mm | 7.0mm | 4.0mm |
| M5 | 0.8mm | 7.0mm | 8.0mm | 4.9mm |
| M6 | 1.0mm | 9.0mm | 10.0mm | 6.7mm |
| M8 | 1.25mm | 12.0mm | 13.0mm | 9.2mm |
| M10 | 1.5mm | 14.0mm | 16.0mm | 10.6mm |
| M12 | 1.75mm | 16.0mm | 18.0mm | 13.0mm |
| M14 | 2.0mm | 18.0mm | 21.0mm | 14.6mm |
| M16 | 2.0mm | 20.0mm | 24.0mm | 16.6mm |
| M18 | 2.5mm | 22.0mm | 27.0mm | 18.5mm |
| M20 | 2.5mm | 25.0mm | 30.0mm | 20.5mm |
| M22 | 2.5mm | 28.0mm | 34.0mm | 21.5mm |
| M24 | 3.0mm | 30.0mm | 36.0mm | 23.5mm |
| M27 | 3.0mm | 32.0mm | 41.0mm | 25.5mm |
| M30 | 3.5mm | 34.0mm | 46.0mm | 27.5mm |