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The Range£10.70Visit shop Unifix A2-304 Dome Nuts Din 1587 - M4 X 0.70 - Q201587000400000000 - Grey
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The Unifix Dome Nuts DIN 1587 in M12 x 1.75 are premium-grade fasteners designed for professionals and DIY enthusiasts who require secure, weather-resistant connections. These high-quality dome nuts offer superior corrosion resistance and a clean, aesthetic finish, making them ideal for marine, automotive, and outdoor structural projects. While they provide excellent durability and a decorative cap to cover exposed bolt ends, users should ensure they are matching the thread pitch correctly with compatible bolts to avoid cross-threading.
| Colour | Silver |
|---|---|
| Model Part Number | A4-316 |
| Brand | Unifix |
DIN 1587 is a German industrial standard that defines the dimensions and geometry of high-type dome nuts.
The nuts are highly resistant to moisture and corrosion, but they are not hermetically sealed against water ingress at the threads.
Yes, provided the bolt has a 1.75mm thread pitch (standard M12 coarse).
Because they are made from A4-316 stainless steel, they offer excellent rust resistance even in marine environments.
The diameter is 12mm and the thread pitch is 1.75mm.
While not strictly required for the dome nut to function, using a compatible stainless steel washer can help protect the mounting surface from scratches.
Verify the thread pitch is exactly 1.75mm; ensure no debris is in the bolt threads.
Stainless steel can gall; apply a small amount of anti-seize lubricant to the bolt threads before installation.
To ensure proper performance, verify that your mating bolt has an M12 diameter and a 1.75mm thread pitch. If the threads are dirty or rusted, clean them with a wire brush before installation to prevent jamming.
Installation Steps:
Care Instructions:
