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Home > Tools & Hardware > Hand Tools > Wrench > Self-Locking Wrench 45# Steel Body, Locking Mechanism, Hardened Teeth, 27mm Jaw Opening,Heavy Duty Self-Locking Spanner
Self-Locking Wrench 45# Steel Body, Locking Mechanism, Hardened Teeth, 27mm Jaw Opening,Heavy Duty Self-Locking Spanner
Product Spotlights
Self-locking mechanism reduces hand fatigue; hardened teeth for secure grip; 45# steel body ensures durability; 27mm jaw covers common fasteners; customizable grip and finish; direct manufacturer with over 20 years of experience and global exports.
US$ 30
≥10 Units
Key Specifications
Get Latest Price
Material:
Other, 45# Steel
Jaw Opening:
27mm
Locking Mechanism:
Self-Locking
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
7 days
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Material
Other, 45# Steel
Jaw Opening
27mm
Locking Mechanism
Self-Locking
Teeth Type
Hardened Teeth
Weight
Heavy Duty (approx. 0.8kg - customizable)
Finish
Black phosphate or plain (optional)
Application
Automotive, construction, industrial maintenance
Handle Type
Ergonomic grip (optional)
Packaging
Single unit or bulk (customizable)
Introducing the Cangzhou Dean Safety & Special Tools Co., Ltd Self-Locking Wrench – a precision-engineered heavy-duty tool crafted from 45# steel, designed to deliver reliable clamping force and exceptional durability. As a manufacturer with over two decades of experience (since 2001) and an annual export value exceeding US$100 million, we take pride in offering professional-grade locking spanners that meet the demanding needs of mechanics, engineers, and industrial professionals worldwide. Our self-locking mechanism ensures secure grip without constant hand pressure, while the hardened teeth provide superior bite on stubborn fasteners. With a 27mm jaw opening, this wrench is ideal for a wide range of applications, from automotive repair to heavy machinery maintenance.
Below, we detail the key features, technical specifications, and benefits that make this Self-Locking Wrench a reliable choice for your toolbox.
Key Features & Advantages
- 45# Steel Body – The body is forged from high-strength 45# carbon steel, offering excellent toughness and resistance to deformation under heavy loads. This material provides a solid foundation for long-term use in tough environments.
- Self-Locking Mechanism – An integrated locking device automatically engages when pressure is applied, preventing accidental release and reducing user fatigue. Simply engage the locking lever to secure the jaw position – no need to constantly squeeze the handle.
- Hardened Teeth – The jaw teeth are heat-treated to achieve high hardness (approx. HRC 45-50), ensuring a strong bite on nuts, bolts, and pipes without slipping or damaging fastener surfaces. Ideal for rusted or overtightened components.
- 27mm Jaw Opening – The 27mm (approx. 1-1/16 inch) opening accommodates a wide range of fastener sizes commonly found in automotive, plumbing, and industrial applications. Suitable for metric and imperial standards.
- Heavy Duty Construction – Designed for demanding tasks, this wrench withstands high torque and repeated use. The robust build minimizes flex and provides predictable performance.
- Ergonomic Handle (Optional) – An optional rubberized or textured grip can be added for improved comfort and control, even in oily or wet conditions. Available upon request.
- Versatile Application – Works on hex nuts, square nuts, bolts, and even smooth pipes thanks to the self-locking grip. Perfect for automotive, construction, plumbing, and general maintenance.
Technical Specifications
| Parameter | Value |
| Body Material | 45# Carbon Steel |
| Jaw Opening | 27mm (1.06 inches) |
| Overall Length | Approx. 250mm (customizable) |
| Weight | ~0.8 kg (heavy-duty variant) |
| Teeth Hardness | HRC 45-50 (hardened) |
| Locking Type | Self-locking lever mechanism |
| Surface Finish | Black phosphate or plain (optional) |
| Handle Grip | Ergonomic rubber grip (optional) |
Customer Benefits
- Reduced Fatigue – The self-locking feature holds the jaw firmly without continuous hand pressure, allowing you to work longer and more comfortably.
- Secure Grip – Hardened teeth ensure a tenacious hold on fasteners, minimizing slippage and potential injuries.
- Versatility – Use on hex, square, and even damaged fasteners. The 27mm opening covers many common sizes.
- Durability – 45# steel body and hardened teeth resist wear and impact, providing years of reliable service in demanding workshops.
- Cost-Effective – As a direct manufacturer, we offer competitive pricing without compromising quality. Customization (logo, packaging, grip) is available to meet your brand requirements.
At Cangzhou Dean Safety & Special Tools Co., Ltd, we have been manufacturing high-quality tools since 2001. With an annual export value exceeding US$100 million, our products are trusted by customers across North America, South America, Europe, Asia, Africa, and Oceania. Each Self-Locking Wrench undergoes rigorous quality control to ensure consistent performance. We are committed to providing professional-grade tools backed by decades of expertise. Whether you need standard models or customized specifications, our team is ready to support your business. Contact us today to place an order or request a quotation – experience the Dean difference!
Frequently Asked Questions (FAQ)
-
Q: What materials can this wrench grip?
A: It is designed for metal fasteners such as steel, iron, brass, and aluminum nuts/bolts. The hardened teeth also work on slightly damaged or rounded fasteners, providing a secure grip. -
Q: How does the self-locking mechanism work?
A: The mechanism uses a spring-loaded lever that automatically locks the jaw when pressure is applied. To release, simply press the lever and adjust the jaw opening. It ensures the wrench stays clamped without constant hand force. -
Q: Can I use this wrench on pipes?
A: Yes, the self-locking design and hardened teeth allow it to grip smooth cylindrical objects like pipes, but it is primarily intended for hex and square fasteners. For pipe work, consider using a dedicated pipe wrench for better hold. -
Q: Is the jaw opening adjustable to smaller sizes?
A: Yes, the wrench features an adjusting screw that allows you to set the jaw opening from 0 up to 27mm. It can securely clamp smaller fasteners as well. -
Q: Does the tool come with a warranty?
A: We offer a standard 12-month warranty against manufacturing defects. Extended warranty or guarantee terms can be discussed on bulk orders. -
Q: Is the finish rust-resistant?
A: The standard finish is black phosphate, which provides a degree of corrosion resistance. For enhanced protection, we can apply a zinc-plated or chrome-plated finish as an option. -
Q: Can I get custom branding on the handle?
A: Absolutely. We offer OEM/ODM services including laser engraving, embossing, or custom color grips for your brand logo. MOQ may apply. -
Q: What is the minimum order quantity (MOQ)?
A: Sample orders are welcome (1-10 pieces). For bulk production, MOQ is typically 1000 pieces, but we can negotiate based on your specific requirements.
Send Inquiry to This Supplier
Ms. Jesse
Foreign Trade Manager
1Yr
Cangzhou, Hebei, China
1Yr
Business Type
Manufacturer
Year Established
2001
Annual Export Value
Above US$100 Million
Port of Shipment
tianjin, shanghai, ningbo
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