Stainless Steel Hex Cap Nuts | Decorative Domed Hardware | M3-M16 Metric Sizes

These DIN1587 standard hex cap nuts combine functional fastening with a clean, finished appearance. The polished 304 stainless steel dome resists rust and tarnishing, making these nuts ideal for appli...
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Questions about this product
- How do I know if my bolt is too long for these cap nuts?
- Because these nuts have a closed dome, your bolt cannot protrude past the top. You must match your bolt's exposed thread length to the nut's internal depth. For example, our M8 size accommodates about 8 millimeters of thread before hitting the dome. If your bolt is too long, the nut bottoms out before clamping your parts tight.
- Can I use these stainless steel cap nuts for outdoor or marine projects?
- Yes, these nuts use 304 stainless steel, which holds up great against rust and tarnish. They are perfect for outdoor furniture, architectural metalwork, and high-moisture areas. While highly durable, they are best for mild corrosive environments rather than direct saltwater submersion.
- Will these nuts fit standard metric bolts and my existing wrenches?
- These nuts feature standard ISO metric coarse threads and comply with DIN 1587 specifications. They thread perfectly onto any standard metric bolt from sizes M3 up to M16. To tighten them, just use standard metric wrenches, such as a 13mm tool for the M8 size.
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