Stainless Steel Split Ring, 30mm Diameter, 3mm Wire, Hardness HRC 40, Spring Tempered, Factory Direct
Product Spotlights
Dongguan HonHo Jewelry Co., Ltd., established in 2010 with a factory spanning 3,000–5,000 square meters and a dedicated team of 51–100 employees, is proud to present our Stainless Steel Split Ring — a precision-engineered fastening solution designed for demanding applications. With an annual export value exceeding US$2.5 million and a reputation for consistent quality, we offer this 30mm diameter, 3mm wire ring directly from our factory, ensuring competitive pricing and reliable supply. The spring-tempered stainless steel construction, hardened to HRC 40, delivers exceptional strength and resilience, making it the ideal choice for keychains, fishing tackle, hardware assemblies, and custom jewelry projects.
Product Features & Technical Specifications
- Material: Premium 304 / 316 stainless steel for excellent corrosion resistance and durability.
- Spring Tempered: Heat-treated to achieve spring-like flexibility without permanent deformation.
- Hardness HRC 40: Balanced hardness provides optimal wear resistance and malleability for easy opening/closing.
- Wire Diameter 3mm: Thick enough for heavy-duty use yet flexible for manual handling.
- Outer Diameter 30mm: Generous size fits through multiple key holes or attachment points.
- Split Design: Smooth edges, no burrs, easy to slide items on and off without snagging.
- Factory Direct: Customizable packaging, bulk orders welcomed, fast turnaround from our Dongguan facility.
| Parameter | Value |
|---|---|
| Material | Stainless Steel (304/316 options) |
| Outer Diameter | 30 mm (1.18 inch) |
| Wire Diameter | 3 mm (0.12 inch) |
| Hardness | HRC 40 |
| Heat Treatment | Spring Tempered |
| Surface Finish | Bright, matte, or custom |
| Application | Keychains, fishing lures, pet tags, hardware, jewelry |
Our manufacturing process ensures consistent quality: each ring is formed, heat-treated, and inspected to meet strict tolerances. The spring-tempered property means the ring returns to its original shape after opening, providing a secure hold even after repeated use. Unlike ordinary split rings that may break or lose tension, our HRC 40 hardness guarantees long-lasting performance. The 30mm diameter accommodates multiple keys or bulky attachments, while the 3mm wire thickness offers a substantial feel without being overly heavy.
Trust Your Supply Chain to a Proven Manufacturer
Dongguan HonHo Jewelry Co., Ltd. has been a reliable source for precision metal products since 2010. Our factory spans 3,000–5,000 square meters, staffed by 51–100 skilled workers. With an annual export value of US$2.5 million – US$5 million, we serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. We hold ISO9001 certification and follow rigorous quality control procedures. Shipments are dispatched from Shenzhen, Dongguan, or Guangzhou ports, ensuring efficient logistics worldwide.
Why choose our split rings? They are manufactured with precision machinery, hand-inspected for burrs and dimensional accuracy, and packaged to your specifications. Whether you need 1,000 pieces or 1 million, our factory direct pricing gives you a competitive edge. We also offer customization on diameter, wire gauge, finish, and packaging — just let us know your requirements.
Contact us today for samples or a quotation. Experience the combination of superior materials, expert craftsmanship, and responsive service that has made HonHo a trusted partner for businesses globally.
Frequently Asked Questions
-
What is the difference between HRC 40 and other hardness levels?
HRC 40 provides a balance of strength and flexibility. Lower hardness may deform under load, while higher hardness (e.g., HRC 50) can become brittle. Our HRC 40 spring-tempered rings offer optimal spring-back and durability for repeated use. -
Is the 30mm diameter the outer or inner measurement?
It is the outer diameter. The inner diameter is approximately 24mm (depending on ring shape), allowing ample space for multiple keys or attachments. -
Can I get rings with a different wire thickness or diameter?
Yes, customization is available. Please contact us with your desired specifications, and we will provide a quote and lead time. -
Are these split rings suitable for outdoor or marine environments?
Yes, our stainless steel (especially 316 grade) offers excellent corrosion resistance. We recommend 316 for saltwater exposure. Please specify your preferred grade when ordering. -
Do you offer samples before bulk orders?
Absolutely. We can send samples (paid or free depending on quantity) for evaluation. Sample lead time is typically 3–5 working days. -
What is the minimum order quantity (MOQ)?
Our MOQ for standard size is 5,000 pieces. For custom sizes, MOQ may be higher. However, we can discuss based on your project needs. -
How are the rings packaged?
Standard packaging is in poly bags or small boxes, with custom labeling available. For large orders, we can pack in cartons or bulk bags as per your request. -
What is your typical delivery time?
For standard stock items, delivery is within 7–10 days after payment. Custom orders take 15–25 days, depending on complexity and quantity.
Send Inquiry to This Supplier
You May Also Like
-
Stainless Steel Ring for Fashion Jewelry 1.2mm Thick Lead-Free Wholesale With Mill Test ReportUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring 1-Year Warranty Free Sample 316L Polished Custom Size Wholesale SupplierUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring Jewelry 2.5mm Wide 316L PVD Gold Wholesale Bulk Order Stable SupplyUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring for Gift & Accessory 304 Polished Edge OEM/ODM Low MOQ Factory SupplyUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring Black Plated 1.8mm Thick 316L Jewelry Wholesale Middle East MarketUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring 316L Surgical Grade 1.0mm Width Custom Engraving Wholesale Supplier EuropeUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Stainless Steel Ring 304 2.0mm Width Nickel-Free Custom Size Wholesale Supplier Stable SupplyUS$ 2.4 - 4.5MOQ: 30 Pieces
-
316L Stainless Steel Ring 1.5mm Thick Polished Finish for Jewelry Wholesale Low MOQ OEMUS$ 2.4 - 4.5MOQ: 30 Pieces
-
Factory Supply Stainless Steel Ring 304/316 Grade Diameter 15-25mm Mill Test Report IncludedUS$ 2.1 - 4.8MOQ: 30 Pieces
-
Stainless Steel Ring Supplier With Low MOQ & Fast Shipping Lab Testing Report ProvidedUS$ 2.1 - 4.8MOQ: 30 Pieces



