Contact Platform Support
Help Center45# Steel Hex Key Wrench Set, 14-50mm Metric, Black Oxide Finish,Heat Treated for Durability
Product Spotlights
Related Products
-
Straight Box Wrench, 45# Steel Heavy Duty, 17mm/19mm/22mm/24mm, 200mm Length, Industrial GradeUS$ 15MOQ: 10 Units -
Straight Box Wrench, 45# Steel, 12-Point Pattern, 17mm-36mm, Phosphate Coated, Rust ResistantUS$ 15MOQ: 10 Units
-
Straight Box Wrench for Automotive Repair, 45# Steel Metric Sizes 17-32mm, Ideal for Engine Tight SpacesUS$ 15MOQ: 10 Units
-
45# Steel Straight Box Wrench, 12-Point, 17mm-32mm Metric Sizes, Heat Treated HardenedUS$ 15MOQ: 10 Units
-
Heavy Duty Straight Box Wrench, 45# Carbon Steel, Black Oxide Finish, 17-24 mmUS$ 15MOQ: 10 Units
Introducing the 45# Steel Hex Key Wrench Set (14-50mm Metric) — a premium fastening solution engineered for professionals who demand strength, precision, and longevity. As a trusted manufacturer since 2001, Cangzhou Dean Safety&Special Tools Co., Ltd brings over two decades of expertise to every tool we produce. With an annual export value exceeding US$100 million and a global footprint spanning North America, Europe, Asia, and beyond, our hex wrench set represents the pinnacle of industrial-grade quality. The combination of 45# carbon steel, black oxide finish, and heat treatment ensures exceptional hardness, corrosion resistance, and torque performance — making this set the ideal choice for heavy-duty assembly, automotive repair, and construction applications. Whether you need a reliable everyday tool or a custom solution for your production line, our factory is ready to serve you.
Key Features & Technical Specifications
- Premium Material: Constructed from 45# carbon steel — a medium-carbon steel known for its excellent strength and wear resistance after heat treatment. Ideal for high-torque tasks without deformation.
- Heat Treated for Durability: Each key undergoes a controlled heat treatment process to achieve a consistent hardness (typically 46-52 HRC), delivering superior durability and resistance to edge rounding.
- Black Oxide Finish: The black oxide coating not only provides a sleek, professional appearance but also protects the surface from rust and corrosion. It reduces friction during insertion and extends service life.
- Metric Size Range: From 14mm to 50mm, covering a wide spectrum of common and larger hex socket fasteners. Perfect for industrial machinery, flange bolts, and heavy equipment.
- Classic L-Shape Design: The long arm for reaching recessed sockets and the short arm for higher torque leverage. Chamfered ends allow smooth insertion into fasteners.
- High Precision: Manufactured to strict tolerances (ISO 2768-m or equivalent) ensuring accurate fitment and minimal play.
- Set Organization: Sizes are clearly laser-engraved on each key for quick identification. Available in a durable pouch or custom packaging upon request.
- Customization Options: Pair sizes, add logos, modify packaging — we support OEM/ODM projects with flexible MOQs.
| Parameter | Specification |
|---|---|
| Material | 45# Carbon Steel (C45) |
| Surface Treatment | Black Oxide (Magnetite) |
| Hardness (After Heat Treatment) | 46–52 HRC |
| Size Range | 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 22mm, 24mm, 27mm, 30mm, 32mm, 36mm, 41mm, 46mm, 50mm (16-piece set typical, customizable) |
| Shape | L-shaped (Long arm ≈ 1.5x short arm) |
| Application | Industrial maintenance, automotive, heavy machinery, construction |
Why Choose This Hex Key Set? The combination of 45# steel and heat treatment delivers up to 40% higher torque compared to standard unhardened tools, reducing the risk of stripping or breaking. The black oxide finish not only prevents rust but also creates a slightly roughened surface that grips the fastener better than bare steel. Each key is individually inspected for straightness and dimensional accuracy. With the 14–50mm metric range, you can handle everything from medium-duty assembly to large-scale structural bolting.
Trust & Reliability — Backed by a Global Manufacturer
Cangzhou Dean Safety&Special Tools Co., Ltd has been a global supplier of professional tools since 2001. Our annual export value exceeds US$100 million, serving markets across 5 continents. We ship from major ports including Tianjin, Shanghai, and Ningbo, ensuring fast and cost-effective logistics. Our factory in Cangzhou, Hebei, is equipped with modern heat treatment lines and precision machining centers, allowing us to control quality from raw material to final packaging. Over 90% of our customers return for repeat orders — a testament to our consistent quality and service. Contact us today to request a quote, sample, or to discuss customized requirements. We welcome distributors, OEM partners, and bulk buyers.
Frequently Asked Questions (FAQ)
-
Q: What is the material of these hex keys?
A: They are made from 45# carbon steel (also known as C45), which offers excellent strength and wear resistance after heat treatment. -
Q: Are the keys rust-resistant?
A: Yes, the black oxide finish provides moderate corrosion protection. For maximum rust resistance in humid environments, we recommend applying light oil after use. -
Q: What sizes are included in the set?
A: The set covers metric sizes from 14mm to 50mm. A typical 16-piece set includes: 14, 15, 16, 17, 18, 19, 20, 22, 24, 27, 30, 32, 36, 41, 46, 50mm. Other combinations are available on request. -
Q: Can these keys handle high-torque applications?
A: Absolutely. The heat treatment increases the hardness to 46-52 HRC, significantly improving torque capacity and reducing the risk of deformation or breakage. -
Q: Is custom packaging or branding available?
A: Yes, we offer OEM/ODM services. You can have your own logo, custom pouch, or box. Minimum order quantity depends on the complexity. -
Q: How are the keys marked for identification?
A: Each key has the size laser-engraved on it, ensuring permanent readability even after years of use. -
Q: What is the typical lead time?
A: For standard sets, lead time is around 15-25 days after order confirmation. Custom orders may take slightly longer. -
Q: Do you provide samples?
A: Yes, samples are available. Please contact our sales team for sample cost and shipping details.
Send Inquiry to This Supplier
You May Also Like
-
Spark Proof Offset Wrench ,box End Double Two Sides Ring Spanner Aluminum Bronze Beryllium Bronze Safety SparklessUS$ 2.3 - 260MOQ: 1 Unit
-
Aluminum Bronze Double Open End Wrench Sparkless Copper Alloy Forged Type High QualityUS$ 2.3 - 260MOQ: 1 Unit
-
Sparkless Non Magnetic Beryllium Bronze Adjustable Wrench 4" 100mm,max 13mm,US$ 12 - 360MOQ: 10 Pieces
-
Non Sparking Pipe Wrench Beryllium Bronze Stilson,tube Spanner American TypeUS$ 15 - 360MOQ: 10 Pieces
-
Non Sparking Oblique Pipe Wrench Aluminum Bronze 8" OEMUS$ 20 - 120MOQ: 10 Pieces
-
Non Spark High Quality Chain Pipe Wrench OEM Aluminum Bronze 100*600mm,US$ 160 - 450MOQ: 10 Pieces
-
Belt Pipe Wench . Strap 450mm, Non Sparking Copper Alloy Customized SpannerNegotiableMOQ: 10 Pieces
-
Combination Wrench Set ,non Sparking Tools Beryllium Bronze ,US$ 20 - 236MOQ: 10 Pieces
-
DRUM OPENER ,PLUG BUNG WRENCH BERYLLIUM BRONZE NON SPARKINGUS$ 45 - 59MOQ: 10 Pieces
-
MULTIFUNCTIONAL BUNG WRENCH COPPER ALLOY NON SPARKING BERYLLIUM BRONZE HAND TOOLSNegotiableMOQ: 10 Pieces
