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Help CenterIndustrial Maintenance DIN Standard Single Open Wrench for Heavy Bolts, 24mm-36mm
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From Cangzhou Dean Safety&Special Tools Co.,Ltd – a trusted manufacturer since 2001 with annual export value exceeding US$100 Million – we present our Industrial Maintenance DIN Standard Single Open Wrench designed for heavy bolts in the range of 24mm to 36mm. This tool combines precision engineering with robust materials to deliver reliable performance in demanding maintenance environments. Whether you are servicing heavy machinery, industrial equipment, or structural assemblies, our open wrench ensures optimal torque transfer and long service life.
Our factory, located in Cangzhou, Hebei, China, employs strict quality control procedures to meet international standards. Each wrench is manufactured according to DIN (German Institute for Standardization) specifications, ensuring compatibility and interchangeability with standard fasteners. The open-end design allows quick engagement with hex bolts and nuts, making it ideal for confined spaces where a socket wrench cannot fit.
Key Features & Technical Specifications
- Material Quality: Forged from high-grade Chrome Vanadium steel (Cr-V) or alloy steel, offering exceptional strength and resistance to deformation under heavy loads.
- Dimensional Accuracy: Each size (24mm, 27mm, 30mm, 32mm, 36mm) is precisely machined to DIN tolerance standards, ensuring a snug fit on bolts to prevent rounding.
- Heat Treatment: Through-hardened and tempered to achieve an optimal balance of hardness (HRC 40-48) and toughness, reducing the risk of cracking or chipping.
- Surface Finish: Available options include polished chrome plating for corrosion resistance, black oxide for reduced glare, or satin finish – customizable per your requirements.
- Ergonomic Design: The handle is contoured for comfortable grip, with a non-slip texture even when oil or grease is present. The open head is angled at 15° for better access in tight spaces.
- Marking: Each wrench has permanently laser-etched size markings for quick identification.
| Size (mm) | Overall Length (mm) | Weight (kg) | Torque Capacity (Nm approx.) |
|---|---|---|---|
| 24 | 270 | 0.35 | 250 |
| 27 | 285 | 0.40 | 280 |
| 30 | 300 | 0.48 | 320 |
| 32 | 315 | 0.55 | 350 |
| 36 | 340 | 0.68 | 400 |
Advantages for Your Business
- Time Savings: The open-end design allows faster bolt engagement and removal compared to box-end wrenches, especially in maintenance tasks requiring repeated loosening/tightening.
- Cost Efficiency: Made from durable steel and heat-treated, these wrenches withstand heavy daily use, reducing replacement frequency and total cost of ownership.
- Versatility: Suitable for use in industrial maintenance, automotive repair, construction, mining, and energy sectors – anywhere heavy bolts (M16 to M24 threads) need to be serviced.
- Safety: The anti-slip handle and precise jaw geometry minimize the risk of slipping, protecting both the user and the fastener.
Why choose Cangzhou Dean Safety&Special Tools Co.,Ltd? With over two decades of experience (since 2001) and an annual export value exceeding US$100 Million, we have supplied tools to markets across North America, South America, Europe, Africa, Asia, and Oceania. Our products are shipped from major ports including Tianjin, Shanghai, and Ningbo, ensuring efficient logistics. We offer customizable packaging, OEM/ODM services, and strict quality assurance. Every wrench is inspected before shipment to meet your expectations.
Request a quote or sample today to experience the quality of our DIN standard single open wrench. Our team is ready to support your industrial maintenance needs with professional after-sales service.
Frequently Asked Questions (FAQ)
1. What materials are these wrenches made of?
They are forged from high-quality Chrome Vanadium steel (Cr-V) or alloy steel, heat-treated to HRC 40-48 for optimal hardness and toughness.
2. Are these wrenches compliant with international standards?
Yes, they are manufactured according to DIN standards, ensuring precise dimensions and compatibility with standard hex bolts.
3. Can I get a set containing all sizes (24-36mm)?
Yes, we offer both individual wrenches and sets. Custom packaging options are available upon request.
4. What surface finishes are available?
Standard options include polished chrome, black oxide, and satin finish. Custom finishes can be discussed.
5. Is it suitable for use on stainless steel fasteners?
Yes, the precise jaw fit minimizes galling and damage to fastener heads, making it suitable for stainless steel and other soft materials.
6. Do you provide custom branding or logo engraving?
Yes, OEM/ODM services are available. We can laser-etch your brand or part numbers on the tool.
7. What is the expected delivery time for bulk orders?
Typical lead time is 15–30 days depending on order quantity and customization. We ship from Tianjin, Shanghai, or Ningbo ports.
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