Metric Thread Marine Waterproof SS Cable Glands

Today (August 26, 2025), the 16th Shenzhen International Connectors, Cables, Cable Harnesses & Processing Machinery Exhibition (ICH Shenzhen 2025) officially opened at the Shenzhen International Convention and Exhibition Center (Bao'an New Hall). As a "one-stop" ecosystem event for the connector industry, this year's exhibition, themed "Smart Industry, Connecting the Future," attracted over 700 global exhibitors, covering core sectors such as new energy, automotive manufacturing, and industrial automation. Among them, Wenzhou Chuangda Connector Co., Ltd. (hereinafter referred to as "Chuangda"), a small but sophisticated company deeply engaged in the connector and cable accessories field, showcased its core products at the exhibition, injecting fresh vitality into the industry.

I. Exhibition: A 40,000-square-meter flagship platform connecting global industry opportunities

ICH Shenzhen 2025 is a leading exhibition for the connector, cable, and wiring harness industry, and this year's event has been expanded:

Full-chain coverage: Showcasing products from the entire industry chain, including connectors (high-speed, high-frequency, automotive, and power supplies), cables and wiring harnesses (automotive wiring harnesses and industrial cables), processing equipment (crimping machines, laser welding machines, and automated assembly lines), and supporting materials (plastics, cable ties, and insulation sheathing);

Highlights: The International New Energy Connector and Wiring Harness Processing Technology Summit will be held concurrently, focusing on technological trends and manufacturing innovations in the new energy vehicle and solar-energy storage and charging industries under the "dual carbon" climate.

Efficient Matchmaking: It is expected to attract more than 50,000 professional visitors (buyers and technical experts in the fields of electronic manufacturing, automobiles, new energy, etc.), and provide a three-in-one business platform of "brand display - economic and trade negotiations - technical exchanges".

2. Chuangda: 14 Years of Focus, a Small but Precise Connector "Invisible Craftsman"

Founded in 2011, Chuangda, despite its small size (fewer than 50 employees), has been deeply engaged in the connector and cable accessories field for 14 years, establishing itself as a leader in the industry for its expertise and precision.

Core Products: Our core products include connectors (terminals and plug-ins), cable accessories (nylon cable ties, stamped end fittings, spiral wrapping tubing, and cable connectors), and power distribution switchgear and control equipment, serving diverse applications including industrial, home appliance, and new energy.

Solid Qualifications: We hold trademarks, two registered websites (www.wzchda.com and www.wzchda.cn), and numerous certifications. We are a "general taxpayer" enterprise, ensuring production compliance and product reliability.

Precise positioning: We focus on small and medium-sized batch customization needs, especially in the field of "small and scattered" cable accessories (such as cable connectors, corrugated pipe connectors, and wire caps), and have accumulated rich experience, filling the gaps in some market segments.

3. Chuangda x Exhibition: Mutual Empowerment, Exploring New Possibilities for "Smart Manufacturing"

At ICH Shenzhen 2025, Chuangda will establish deep connections with the industry through product demonstrations and technical exchanges:

Core Products on Display: Focusing on industrial-grade connectors (compatible with automation equipment), new energy cable accessories (such as waterproof cable ties and insulation sheaths), and customized terminal blocks, addressing the needs of the exhibition's hot sectors, such as "new energy" and "industrial automation."

Addressing Customer Pain Points: Targeting the "small-batch, multi-specification" purchasing needs of small and medium-sized manufacturers, Chuangda will demonstrate its "rapid prototyping - flexible delivery" service model, helping buyers reduce supply chain management costs.

Expanding the cooperation network: Leveraging the exhibition's 50,000+ professional visitors, Chuangda can reach high-quality buyers such as new energy vehicle and solar storage and charging equipment manufacturers. At the same time, it can explore technical collaborations with processing equipment manufacturers (such as crimping machines and laser welding machine companies) to promote product upgrades.

4. Sincerely Invited: Visit the Chuangda booth and unlock partnership opportunities.

Exhibition Dates: August 26-28, 2025 (Opens today, only two days left!)

Exhibition Location: Shenzhen International Convention and Exhibition Center (Bao'an New Hall)

Chuangda Booth: 6A059

Whether seeking high-quality connector/cable accessory suppliers or exploring niche collaboration opportunities, the collaboration between Chuangda and ICH Shenzhen 2025 will bring new inspiration and possibilities to the industry. Seize the last two days and come to the Shenzhen International Convention and Exhibition Center to discuss "Connecting the World, Connecting You and Me" with Chuangda.

In hazardous areas—where explosive gases, flammable dust, or corrosive substances pose constant threats to electrical systems—cable glands are far more than simple connectors. These critical components seal cable entry points, prevent the ingress of hazardous materials, and maintain the integrity of explosion-proof or flameproof enclosures, directly safeguarding personnel, equipment, and operations. Yet, selecting the right cable gland for such high-risk environments is not a choice to be made lightly: two non-negotiable pillars—material durability and global certification compliance—determine whether a cable gland will perform reliably or become a catastrophic weak link. This guide breaks down the essential material requirements and certification standards you must prioritize to ensure safety and compliance in hazardous zones.
 
Material Requirements: Built to Withstand Hazardous Environments
 
Hazardous areas expose cable glands to extreme conditions—from corrosive chemicals in petrochemical plants to abrasive dust in grain silos and temperature swings in offshore oil rigs. The material of a cable gland directly impacts its resistance, longevity, and ability to maintain sealing performance. Below are the key materials and their critical roles:
Metallic Materials: For High-Strength, Explosion-Proof Needs
Metals remain the gold standard for Zone 0, 1 (gas-explosive environments) and Zone 20, 21 (dust-explosive environments) due to their rigidity and ability to contain potential sparks.

Brass: Cost-effective and corrosion-resistant for general hazardous areas (e.g., chemical storage facilities). It offers good machinability, making it ideal for standard cable sizes.

Stainless Steel (304/316): The top choice for harsh, corrosive environments—such as offshore platforms, marine hazardous zones, or chemical processing plants. Its resistance to saltwater, acids, and extreme temperatures (-50°C to 150°C) ensures long-term reliability, even in continuous exposure.

Aluminum: Lightweight and cost-efficient for low-corrosion hazardous areas (e.g., mining operations with dry dust). It is often coated with epoxy to enhance durability.
Non-Metallic Materials: For Specialized Flexibility & Corrosion Resistance
Non-metals excel in applications where weight, chemical resistance, or electrical insulation is critical, particularly in Zone 2 (gas) and Zone 22 (dust) areas.
Nylon (PA6/PA66): High-impact strength and resistance to oils, fuels, and mild chemicals make it suitable for industrial control panels in hazardous zones. It also offers good thermal stability (up to 120°C).

Polypropylene (PP): Unaffected by most acids, alkalis, and solvents, making it ideal for pharmaceutical or chemical plants where aggressive substances are present. It is lightweight and offers excellent electrical insulation.
 
Certification Requirements: Ensuring Global Compliance & Safety
 
Material performance alone is insufficient—hazardous area cable glands must meet strict global certification standards to validate their ability to prevent explosions and comply with regional regulations. Choosing uncertified products not only risks non-compliance penalties but also endangers lives. Here are the most critical certifications to verify:
ATEX (European Union): The primary standard for hazardous areas in the EU and EEA. Certifications are categorized by:
Zone Classification: Gas (IIC for the most severe, IIB, IIA) and Dust (IIIC, IIIB, IIIA) to match the hazard level of your environment.
Equipment Protection Level (EPL): For example, "Ga" (highest protection) for Zone 0, "Gb" for Zone 1, and "Gc" for Zone 2 (gas zones); "Da" for Zone 20, "Db" for Zone 21, "Dc" for Zone 22 (dust zones). A valid ATEX certificate ensures the cable gland meets explosion-proof or flameproof requirements for its designated zone.
IECEx (International Electrotechnical Commission): A global certification scheme recognized in over 80 countries (including Australia, Brazil, China, and Southeast Asian nations). IECEx certification aligns with IEC standards (e.g., IEC 60079) and simplifies cross-border procurement, as it eliminates the need for multiple regional certifications. Look for the IECEx "Ex" mark on the product and accompanying certificate.
UL/CSA (North America): For hazardous areas in the U.S. and Canada, cable glands must meet UL (Underwriters Laboratories) or CSA (Canadian Standards Association) standards. Key certifications include:
UL 1203: For explosion-proof equipment in Class I (gas), Class II (dust), and Class III (fibers) hazardous locations.
CSA C22.2 No. 213: The Canadian equivalent of UL 1203, ensuring compliance with Canadian Electrical Code (CEC) requirements. These certifications confirm the cable gland can withstand pressure, prevent spark propagation, and resist environmental stress in North American hazardous zones.
Other Regional Certifications: Depending on your target market, verify additional standards:
GOST-R: For Russia and Eurasian Economic Union (EAEU) countries.
KCS: For South Korea.
SAA: For Australia and New Zealand (often aligned with IECEx).
 
Why Material & Certification Alignment Matters
 
Choosing a cable gland that matches both the environment’s material demands and regional certifications is not just a compliance box-ticking exercise—it directly impacts operational continuity and safety. For example:
A brass cable gland used in a saltwater-based hazardous zone (e.g., offshore oil rig) will corrode quickly, leading to seal failure and potential explosions.
An uncertified cable gland in a European chemical plant will violate ATEX regulations, resulting in fines, production shutdowns, or even legal liability in the event of an accident.
 
Final Takeaway
 
When selecting cable glands for hazardous areas, never compromise on material suitability or certification validity. Start by assessing your environment’s specific risks (corrosion, temperature, hazard type) to narrow down material options, then verify that the product holds the necessary certifications for your target market. By prioritizing these two pillars, you ensure that your cable glands not only meet global standards but also act as a reliable barrier against the unique dangers of hazardous zones.
Need help comparing specific material options or verifying certification validity for your project? I can assist with a tailored analysis based on your industry and target region.

In industrial, marine, and electrical installations, the cable gland may seem like a small component, but its role is critical: securing cables, preventing ingress of dust, moisture, or corrosive substances, and ensuring long-term reliability of electrical systems. Choosing the wrong size, however, can undermine these functions—leading to leaks, cable damage, or even safety hazards. To avoid such risks, follow this step-by-step guide to select the perfect cable gland size for your application.
 
Step 1: Determine the Cable’s Outer Diameter (OD)
 
The first and most critical step is measuring the outer diameter of your cable—not the inner conductor, but the entire insulated or sheathed outer layer. This includes any armoring, braiding, or protective jackets.
 
1.Use a caliper for precision: Measure at the thickest point of the cable (typically near the end, where the jacket is intact).
2.Note the measurement in millimeters (mm), as cable gland sizes are standardized in metric units.

3.For multi-core cables or those with irregular shapes, take multiple measurements to ensure accuracy.
 
Step 2: Identify the Cable Gland’s Size Range
 
Cable glands are designed to accommodate a specific range of cable diameters, listed by manufacturers as “cable range” (e.g., 6mm–10mm). This range indicates the minimum and maximum cable OD the gland can securely seal.
1.Match your cable’s OD to a gland whose range includes that measurement. For example, a cable with a 8mm OD would fit a gland rated for 6mm–10mm.
2.Avoid glands where the cable OD is at the extreme edges of the range (e.g., a 10mm cable in a 8mm–10mm gland). Opt for a slightly wider range to ensure a tight seal during temperature fluctuations or vibration.
 
Step 3: Consider the Gland’s Thread Size (for Installation)
 
While the cable range focuses on the cable fit, the gland’s thread size determines compatibility with your equipment (e.g., junction boxes, enclosures, or bulkheads). Thread sizes are specified as:
1.Metric threads: M12, M16, M20 (common in industrial settings).

2.PG threads: PG7, PG9, PG11 (popular in European installations).

3.NPT threads: 1/4”, 3/8” (used in North American markets).

4.Check your equipment’s entry port specifications to select the matching thread size. A gland with the correct cable range but wrong thread size will not install properly.
 
Step 4: Account for Application-Specific Factors
 
Environmental and operational conditions can affect size requirements. Adjust your choice based on:
1.Cable movement: If the cable is subject to flexing (e.g., in machinery), choose a gland with a larger range to accommodate slight diameter changes under stress.
2.Temperature extremes: In high-heat or cold environments, cables may expand or contract. Select a gland with a range that accounts for these variations.
3.Ingress protection (IP) needs: For IP66/IP68 rated glands (water/dust tight), ensure the cable OD fits snugly within the range to maintain the seal—even a small gap can compromise protection.
 
Step 5: Verify Compatibility with Cable Type
 
Different cables (e.g., armored, unarmored, braided) require specialized glands, each with unique sizing considerations:
1.Unarmored cables: Use standard glands with a compression ring to seal the jacket.

2.Armored cables: Choose glands with armor clamps, ensuring the clamp size matches the armoring’s diameter (not just the inner cable OD).

3.High-voltage or hazardous area cables: Glands for EX zones (ATEX/IECEx certified) have stricter size tolerances—always cross-reference with the manufacturer’s safety data.
 
Step 6: Consult Manufacturer Specifications
 
Finally, cross-check your measurements with the manufacturer’s datasheet for the chosen gland model. Reputable brands (e.g., Weidmüller, Lapp, or Hubbell) provide detailed charts linking cable OD, thread size, and application limits.
1.Look for notes on “maximum fill” (for multi-cable glands) or special instructions for coated cables.
2.When in doubt, contact the manufacturer’s technical support with your cable details—they can recommend the exact size for your needs.
 
Why Precision Matters
 
A properly sized cable gland ensures a secure seal, prevents premature failure, and maintains compliance with safety standards (e.g., IEC, NEC, or ATEX). Whether for a factory floor, offshore platform, or renewable energy site, taking the time to measure and match sizes will save time, cost, and headaches in the long run.
 
Choose wisely—your system’s reliability depends on it.