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High-Quality Acorn Nuts from China - Leading Suppliers & Factory for Hex Domed Cap Nuts
Product Overview
| Product Name: | Cap Nut / Acorn Nut / Domed Hex Nut |
| Standard: | DIN 1587 / ANSI / BS / ISO / Customized |
| Thread Size: | M4 – M24 / #6 – 1” |
| Head Type: | Hexagon base with dome-shaped closed end |
| Thread Type: | Internal thread – Metric or Inch |
Material Options
- Carbon Steel (Grade 4.8, 6.8, 8.8)
- Stainless Steel (SS201 / SS304 / SS316)
- Nylon-inserted cap nuts (optional)
Surface Finish
- Zinc Plated
- Hot-Dip Galvanized
- Nickel Plated
- Chrome Plated
- Black Oxide
- Polished Stainless Steel
Key Features
Protects exposed bolt threads from corrosion and mechanical damage
Prevents accidental contact with sharp thread ends (enhanced safety)
Dome shape provides a clean, decorative appearance
Suitable for both indoor and outdoor applications
Available in standard and long-dome types
Applications
Packaging & Delivery
| Category | Details |
|---|---|
| Packaging |
|
| MOQ | 5000 pcs (negotiable) |
| Lead Time | 7–20 days depending on specifications |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
- 10+ years of expertise in fastener manufacturing
- Full range of metric and imperial cap nuts
- Strict quality inspection system (thread tolerance, plating thickness)
- OEM / ODM support for custom shapes, finishes, and materials
- Fast response, competitive pricing, and global logistics
Contact Us
Hebei Chudu Metal Products Co., Ltd.
Frequently Asked Questions
Our cap nuts are manufactured to DIN 1587, ANSI, BS, ISO, and other international standards. We also offer customization to meet specific project requirements.
We supply cap nuts in Carbon Steel (Grades 4.8, 6.8, 8.8), Stainless Steel (SS201, SS304, SS316), and nylon-inserted options for specialized applications.
We offer various finishes including Zinc Plated, Hot-Dip Galvanized, Nickel Plated, Chrome Plated, Black Oxide, and Polished Stainless Steel to ensure long-term durability in both indoor and outdoor environments.
Our standard Minimum Order Quantity (MOQ) is 5,000 pieces (negotiable). The delivery lead time generally ranges from 7 to 20 days depending on the ordered specifications and customization requirements.
Yes, we provide fully customizable packaging options and custom logo branding to meet your retail or industrial supply chain requirements.
They are widely used in automotive assembly, furniture, playground equipment, machinery, electrical enclosures, decorative railing systems, marine applications, and structural construction projects.