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Help Center45# Steel Straight Hexagonal Wrench ,Size 22*210mm for Industrial Use，Single Box-End Wrench
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45# Steel Straight Hexagonal Wrench Size 22×210mm – Industrial-Grade Single Box-End Design
As a professional manufacturer established in 2001, Cangzhou Dean Safety & Special Tools Co., Ltd specializes in producing high-strength hand tools for demanding industrial environments. Our 45# Steel Straight Hexagonal Wrench (22×210mm, single box-end) is engineered to deliver superior torque transmission and long service life. Each wrench is forged from premium 45# carbon steel, heat-treated for optimal hardness and toughness, making it an ideal choice for heavy-duty assembly and maintenance tasks.
With an annual export value exceeding US$100 million and a global presence across North America, Europe, Southeast Asia, and more, our tools meet rigorous quality standards. This single box-end wrench features a straight hexagonal head that provides a secure grip on fasteners, reducing rounding and slippage. Whether you work in automotive repair, machinery assembly, or industrial plant maintenance, this tool offers reliable performance and excellent value.
Key Features & Technical Specifications
- Material: 45# high-carbon steel – balanced strength and ductility for repeated use.
- Size: 22mm opening width (hexagonal) × 210mm total length – fits standard metric fasteners.
- Design: Straight single box-end (6-point) – maximizes contact with fastener flats for reduced wear.
- Heat Treatment: Quenching and tempering process ensures hardness of HRC 38-45, resisting deformation.
- Surface Finish: Available in plain or black oxide coating (optional) for corrosion resistance.
- Precision Manufacturing: CNC machined to tolerances within ±0.1mm for consistent performance.
- Packing: Individual polybag or hang tag, bulk carton as per customer requirements.
| Parameter | Value |
|---|---|
| Material Grade | 45# Carbon Steel (AISI 1045 equivalent) |
| Head Type | Single Box-End, Hexagonal (6-point) |
| Opening Size | 22 mm |
| Overall Length | 210 mm |
| Hardness | HRC 38-45 |
| Surface Finish Options | Polished, Black Oxide, or Plain |
| Application | Industrial assembly, automotive, heavy machinery |
| Packaging | Customized per request |
Detailed Advantages for Industrial Users
- Superior Torque Transfer: The hexagonal box-end design provides 360° contact on fastener flats, reducing the risk of rounding and allowing higher torque application compared to open-end wrenches.
- Long-term Durability: 45# steel with precise heat treatment yields a strong, tough core that withstands repeated heavy loads without cracking or bending.
- Weight and Size Balance: The 210mm length offers adequate leverage for tightening/loosening M22 or similar fasteners, while remaining compact enough for confined spaces.
- Cost-Effective Solution: Single box-end design minimizes material usage without sacrificing functionality, making it an economical choice for bulk industrial purchases.
- Versatile Finishing: Choose plain steel for general use or black oxide for added corrosion protection in humid or oily environments.
- Consistent Quality: All tools undergo dimensional inspection and hardness testing before shipment to ensure batch-to-batch reliability.
Trust & Reliability
Cangzhou Dean Safety & Special Tools Co., Ltd has been a trusted manufacturer since 2001. With an annual export value exceeding US$100 million, we serve diverse markets across North America, South America, Europe, Africa, Oceania, and Asia. Our factory in Cangzhou, Hebei, utilizes advanced forging, heat treatment, and precision machining lines. We ship through major ports including Tianjin, Shanghai, and Ningbo, ensuring timely global delivery.
Over 20 years of experience have allowed us to refine our production processes, resulting in tools that meet the rigorous demands of industrial maintenance teams, automotive workshops, and machinery manufacturers. We offer customizable packaging, private labeling, and flexible order quantities to suit your business needs.
Choose our 45# Steel Straight Hexagonal Wrench for a reliable, high-performance tool that reduces downtime and improves efficiency. Contact us today for pricing, samples, or customized solutions.
Frequently Asked Questions (FAQ)
- Q1: What does “45# steel” mean?
- It refers to a medium-carbon structural steel (carbon content around 0.45%) with good strength and toughness, commonly used in tool manufacturing. It is equivalent to AISI 1045.
- Q2: Is this wrench suitable for 22mm hex bolts and nuts?
- Yes, the 22mm opening is designed to fit standard metric hexagonal fasteners with a 22mm width across flats.
- Q3: Can I use it for high-torque applications like tightening cylinder head bolts?
- Yes, the single box-end design provides full engagement on the fastener flats, allowing you to apply higher torque safely. However, always follow recommended torque specifications for your application.
- Q4: What surface finish options are available?
- We offer plain steel (as forged), black oxide coating, and polished finish. The choice depends on your required corrosion resistance and aesthetics.
- Q5: Do you provide custom lengths or other sizes?
- Yes, we can manufacture custom sizes and lengths based on your requirements. Minimum order quantity may apply. Please contact our sales team.
- Q6: How do you ensure the quality of these wrenches?
- Each batch undergoes hardness testing, dimensional checks, and random torque tests. We follow internal quality control procedures to ensure consistency.
- Q7: What is the typical lead time?
- For standard sizes, lead time is usually 15–25 days depending on order quantity. Rush orders can be expedited upon request.
- Q8: Can I order samples before bulk purchase?
- Absolutely. Sample orders are welcome. We can provide samples with freight collect or as negotiated.
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