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Home > Tools & Hardware > Hand Tools > Wrench > Self-Locking Wrench 45# Steel, 280mm Length, 30mm Opening, Ergonomic Grip,Self-Gripping Locking Wrench
Self-Locking Wrench 45# Steel, 280mm Length, 30mm Opening, Ergonomic Grip,Self-Gripping Locking Wrench
Product Spotlights
Self-locking 45# steel wrench with 280mm length and 30mm jaw opening. Ergonomic grip reduces fatigue. Automatic locking holds fasteners securely. Quick-release lever for fast repositioning. Ideal for automotive, plumbing, and industrial use. Durable construction with customizable finish. Backed by 22-year manufacturer with $100M+ export.
US$ 30
≥10 Units
Key Specifications
Get Latest Price
Material:
Other, 45# Steel
Length:
280mm
Jaw Opening:
30mm
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
7 days
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Material
Other, 45# Steel
Length
280mm
Jaw Opening
30mm
Grip Type
Ergonomic Non-Slip Handle
Locking Mechanism
Self-Locking / Self-Gripping
Finish
Customizable (e.g., black oxide, chrome plated)
Application
Automotive repair, industrial maintenance, plumbing
Packaging
Individual box (standard), OEM packaging available
Professional Self-Locking Wrench – 280mm, 30mm Opening, 45# Steel, Ergonomic Grip
As a leading manufacturer based in Cangzhou, Hebei, China, with over 22 years of experience (since 2001) and an annual export value exceeding US$100 million, Cangzhou Dean Safety & Special Tools Co., Ltd is proud to present this robust self-locking wrench. Crafted from high-quality 45# steel, this 280mm tool offers a reliable 30mm jaw opening and an ergonomic self-gripping design that simplifies demanding fastening tasks. Whether you are in automotive repair, industrial maintenance, or plumbing, this wrench delivers consistent clamping force without constant manual adjustment, saving you time and reducing hand fatigue.
Key Features & Specifications
- Durable 45# Steel Construction: The wrench body is forged from 45# carbon steel, known for its excellent hardness and wear resistance. This material ensures long service life even under heavy-duty use.
- Precision Self-Locking Mechanism: Once the jaw is positioned on the fastener, the self-locking system automatically grips and holds it securely. No need to constantly readjust the thumb screw – simply apply torque and release.
- 280mm Optimal Length: Provides good leverage while remaining compact enough for confined spaces. The length balances torque and maneuverability.
- 30mm Jaw Opening Capacity: Suitable for a wide range of bolt heads, nuts, and pipes up to 30mm diameter. The jaw opening is precisely machined for a tight, non-slip fit.
- Ergonomic Non-Slip Handle: The grip is designed to fit the natural curve of your hand, reducing stress on palm and fingers. A textured surface or rubberized coating (available on request) ensures a secure hold even in oily or wet conditions.
- Self-Gripping Action: The patented self-gripping feature allows one-handed operation. Simply squeeze the handle to close the jaw, and the wrench locks automatically. To release, press the quick-release lever.
- Quick-Release Mechanism: A convenient push-button or lever (depending on model) lets you rapidly disengage the lock and reposition the jaw without fumbling.
- Corrosion-Resistant Finish: Standard finish is black oxide, which offers protection against rust and provides a sleek, professional look. Chrome-plated or other finishes are available upon request.
Technical Parameters
| Parameter | Value |
| Total Length | 280 mm |
| Jaw Opening Capacity | 30 mm |
| Material | 45# Carbon Steel |
| Weight (approx.) | 0.95 kg |
| Handle Material | Steel + PVC/TPR grip (optional) |
| Locking Type | Self-locking / Self-gripping |
| Release Mechanism | Quick-release button |
| Surface Finish | Black oxide (standard); other options available |
| Packing | Color box / Blister card / Bulk |
Why Choose Our Self-Locking Wrench?
- Enhanced Efficiency: The self-gripping feature eliminates the need for continuous turning. Once locked, the wrench stays firmly on the fastener, allowing you to apply full torque with both hands if needed.
- Reduced Hand Fatigue: The ergonomic handle design and smoothly contoured jaw reduce strain during prolonged use. The quick-release mechanism also means less wasted motion.
- Versatile Applications: Ideal for automotive mechanics, HVAC technicians, plumbers, electricians, and DIY enthusiasts. Works on hex nuts, square bolts, rounded fasteners, and pipes.
- Consistent Quality Control: Every wrench undergoes hardness testing and dimensional inspection before leaving our factory. Our 22-year track record and global shipments to North America, Europe, Asia, and Africa attest to our reliability.
- Customizable Options: We offer different handle coatings, jaw shapes, and surface finishes to match your brand or specific application. Private labeling and OEM/ODM orders are welcome.
Trust & Reliability
Cangzhou Dean Safety & Special Tools Co., Ltd has been manufacturing professional-grade hand tools since 2001. With an annual export value exceeding US$100 million, we serve customers across more than 20 countries and regions worldwide. Our factory is located in Cangzhou, Hebei, with convenient access to the ports of Tianjin, Shanghai, and Ningbo for fast global shipping. We pride ourselves on rigorous quality control, competitive pricing, and responsive customer service. When you choose our self-locking wrench, you are backed by a manufacturer that understands the needs of professionals.
Order today and experience the difference a high-quality self-locking wrench can make in your daily work. Contact us for bulk pricing, samples, or custom specifications.
Frequently Asked Questions (FAQ)
-
How does the self-locking mechanism work?
Simply close the jaw around the fastener and squeeze the handle. The internal cam system locks the jaw in place automatically. To release, press the quick-release button or lever. -
What is the maximum jaw opening?
The opening is precisely 30 mm. It can accommodate nuts, bolts, and pipes up to 30 mm (approximately 1-3/16 inches) in diameter. -
Is the handle replaceable?
Yes, the ergonomic grip is available as a replacement part. We also offer different handle materials (e.g., dipped PVC, TPR) to suit user preferences. -
Can I use this wrench on rounded or damaged fasteners?
Absolutely. The self-gripping design provides strong clamping force that can grip even slightly worn or rounded fasteners, making it ideal for extraction tasks. -
What surface finishes are available?
Standard finish is black oxide. We also offer chrome plating, phosphate coating, or any custom color/finish based on MOQ. Please inquire. -
What is the minimum order quantity (MOQ) for OEM orders?
Our standard MOQ for OEM orders is 500 pieces per size, but we can accommodate smaller quantities for sample or trial orders. Contact our sales team for details. -
Do you provide a warranty?
Yes, we offer a 12-month warranty against manufacturing defects. Normal wear and tear due to misuse are not covered. Our after-sales team will handle any issues promptly. -
Which ports do you ship from?
We ship primarily from Tianjin, Shanghai, and Ningbo. Lead times are typically 25–35 days after order confirmation, depending on order volume.
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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