Decorative Zinc Plated Carbon Steel Cap Nut DIN 1587 Domed Protective Fastening for Architectural Design

Polished Safety Dome:

• The smooth, rounded top eliminates snagging hazards and prevents injury from exposed bolt threads in high-traffic areas.

Atmospheric Seal:

• The closed-end design prevents water and corrosive agents from entering the thread engagement zone, significantly reducing the risk of rust.

High-End Finish:

• Our nuts undergo a multi-stage finishing process to ensure a bright, mirror-like appearance that complements chrome or stainless steel hardware.

Dimensional Accuracy:

• Manufactured to strict DIN 1587 tolerances, ensuring a perfect fit and consistent dome height across large production batches.

Vibration Stability:

• When tightened against a flat surface, the cap nut provides a secure, vibration-resistant joint suitable for moving parts.

Carbon Steel:

• High-ductility steel for easy forging and excellent plating adhesion.

Stainless Steel:

• SS304 for exterior architectural use; SS316 for marine yacht hardware.

Brass:

• Popular for furniture and electrical fixtures due to its gold-like appearance.

Surface Treatment:

Bright Zinc/Chrome Plating:

• Our most popular finish, offering a high-shine decorative look.

Nickel Plating:

• Provides a slightly warmer tone and better wear resistance than zinc.

Powder Coating:

• Available in custom RAL colors (Black, White, Gold) for design-specific projects.

Passivation:

• Essential for stainless steel to maximize corrosion resistance.

Public Infrastructure:

1. Handrails and balustrades in malls and airports where safety is a priority.

Playground Equipment:

2. Covering bolt ends on swings and slides to prevent child injury.

Consumer Electronics:

3. Decorative fastening on high-end audio equipment and computer cases.

Bicycle/Motorcycle Parts:

4. Wheel axles and engine mounts where a finished look is desired.

Outdoor Lighting:

5. Securing lamp posts and fixtures while protecting the threads from rain.

Furniture Assembly:

6. Visible joints on modern metal-frame tables and shelving units.

Pyramid Hardware Fasteners combines traditional Egyptian craftsmanship with modern European technology. Our ISO 9001:2015 certified facility ensures that even decorative items like Cap Nuts meet the highest mechanical standards. With over 15 years of experience, we understand the nuances of surface finishing and offer a 15-30% cost advantage over international distributors. Our factory-direct model allows for flexible MOQs (starting from 500 pcs) and rapid sample turnaround in just 10-15 days.

Ports:

• Alexandria, Port Said.

Logistics:

• Express air-freight available for small orders; sea freight for bulk.

Incoterms:

• FOB, CIF.

Packaging:

• Layered cartons with protective dividers to prevent surface scratches during transit.

Q: Does the dome affect the thread engagement depth?

1. A: Yes, you must ensure your bolt is the correct length to avoid hitting the top of the dome before the nut is tight.

Q: Are these nuts strong enough for structural use?

2. A: Yes, our Grade 8.8 Cap Nuts provide the same mechanical strength as standard Grade 8 hex nuts.

Q: Can you match a specific powder coat color?

3. A: Yes, provide a RAL or Pantone code, and we can match it exactly.

Q: Do you offer M3 Cap Nuts for electronics?

4. A: Yes, we stock M3 to M24 in most finishes.

Q: What is the lead time for a 50,000 unit order?

5. A: Approximately 20-25 working days from Alexandria port.