Product Description
This high-neck single box-end wrench is designed for tightening and loosening large hex nuts, bolts, and recessed fasteners. Its raised box-end profile provides additional clearance for protruding studs, recessed nuts, flange connections, and fasteners surrounded by adjacent components.
The wrench features a phosphated surface treatment for good rust resistance, corrosion protection, and wear durability. The box-end profile surrounds hex fasteners more completely, providing stable engagement and more even force transfer while helping reduce slipping and fastener corner damage.
Available in sizes from 24mm to 85mm, this high-neck box wrench is suitable for industrial machinery, pipelines, valves, steel structures, construction equipment, mining machinery, wind power maintenance, and heavy-duty repair applications. When appropriate, it may be used with a suitable extension pipe; always apply force safely and avoid overloading the tool.
Features
- High-Neck Box-End Design: Raised ring head provides clearance around protruding studs, flange edges, and surrounding obstacles.
- Single Box-End Structure: Offers secure, wraparound engagement with large hex nuts and bolts for stable torque transfer.
- Phosphated Surface Finish: Provides good rust resistance, corrosion protection, and wear durability.
- Large Size Range: Available from 24mm to 85mm for industrial, mechanical, and engineering applications.
- Suitable for Extension Use: Can be used with an appropriate extension pipe when required, subject to safe working practices.
- Heavy-Duty Construction: Practical and durable design for frequent maintenance, installation, and repair work.
Specifications
| Item No. | Size | Wrench Length (L) | Head Width (W) | Carton Qty. | Unit Weight | Net Weight |
|---|---|---|---|---|---|---|
| W16627 | 24 mm | 245 mm | 42 mm | 50 pcs | 0.30 kg | 13 kg |
| W16630 | 27 mm | 260 mm | 48 mm | 40 pcs | 0.35 kg | 15 kg |
| W16633 | 30 mm | 280 mm | 57 mm | 40 pcs | 0.55 kg | 23 kg |
| W16635 | 32 mm | 280 mm | 57 mm | 40 pcs | 0.56 kg | 23 kg |
| W16637 | 34 mm | 280 mm | 58 mm | 40 pcs | 0.57 kg | 23 kg |
| W16639 | 36 mm | 295 mm | 62 mm | 30 pcs | 0.70 kg | 22 kg |
| W16641 | 38 mm | 295 mm | 62 mm | 30 pcs | 0.71 kg | 22 kg |
| W16644 | 41 mm | 315 mm | 70 mm | 20 pcs | 0.80 kg | 17 kg |
| W16649 | 46 mm | 325 mm | 75 mm | 20 pcs | 1.10 kg | 23 kg |
| W16653 | 50 mm | 345 mm | 85 mm | 10 pcs | 1.11 kg | 12 kg |
| W16658 | 55 mm | 365 mm | 90 mm | 10 pcs | 1.40 kg | 15 kg |
| W16663 | 60 mm | 380 mm | 98 mm | 10 pcs | 1.60 kg | 17 kg |
| W16668 | 65 mm | 400 mm | 105 mm | 10 pcs | 2.00 kg | 21 kg |
| W16673 | 70 mm | 420 mm | 115 mm | 5 pcs | 2.40 kg | 13 kg |
| W16678 | 75 mm | 435 mm | 120 mm | 5 pcs | 2.41 kg | 13 kg |
| W16683 | 80 mm | 460 mm | 137 mm | 5 pcs | 3.60 kg | 19 kg |
| W16688 | 85 mm | 460 mm | 137 mm | 5 pcs | 3.61 kg | 19 kg |
Applications
This high-neck single box-end wrench is suitable for:
- Industrial machinery installation and maintenance
- Excavator, loader, forklift, and construction equipment repair
- Wind power, mining, and energy facility maintenance
- Pipeline, valve, flange, and large connection servicing
- Steel structure, bridge, plant construction, and engineering projects
- Agricultural machinery, tractors, and heavy vehicle repair
- Shipbuilding, port equipment, and railway maintenance
- Large nuts, bolts, recessed fasteners, and protruding stud applications
- Mechanical workshops, repair facilities, and project procurement
Why Choose Us
High-Neck Design for Difficult Access
The raised ring head provides more clearance around studs, flanges, brackets, and surrounding structures, making recessed fasteners easier to reach.
Complete Large-Size Range
Sizes from 24mm to 85mm meet the needs of industrial machinery, valves, pipelines, heavy equipment, and engineering projects.
Durable Phosphated Finish
Phosphate treatment improves rust and corrosion resistance for workshop, construction-site, and outdoor maintenance use.
Secure Box-End Engagement
The ring end grips fasteners more completely for stable force transfer and reduced slipping risk.
Strict Quality Control
Quality inspection covers material, forming, dimensions, finishing, and packaging to ensure consistent supply.
Flexible OEM/ODM Services
Custom logos, specifications, finishes, packaging, and large-size wrench sets are available for distributors, brands, and industrial buyers.
FAQ
Q1: What is a high-neck single box-end wrench?
A1: It is a single-ended box wrench with a raised ring head. The high-neck design provides additional clearance for protruding studs, recessed nuts, flange edges, and nearby components.
Q2: What is the benefit of the high-neck design?
A2: It helps the wrench clear obstacles and access fasteners located in recessed areas, at the end of long studs, or around complex equipment structures.
Q3: What is the advantage of phosphate treatment?
A3: Phosphate treatment improves rust resistance, corrosion protection, and wear durability, making the wrench suitable for general industrial and construction environments.
Q4: Can an extension pipe be used with this wrench?
A4: The product information indicates that an appropriate pipe may be used when needed. Always apply force safely, use a properly fitting pipe, and avoid exceeding the wrench’s safe working capacity.
Q5: How do I choose the correct wrench size?
A5: Measure the distance across the two parallel flats of the nut or bolt head, then choose the wrench with the same size. For example, use a 46mm wrench for a fastener with a 46mm across-flats dimension.
Q6: Can it be used on seized or high-torque fasteners?
A6: It is suitable for normal installation and maintenance work. For heavily rusted, seized, or extremely high-torque fasteners, apply penetrating oil and use suitable professional tools, such as sockets, breaker bars, or hydraulic tools.
Q7: Do you support customization?
A7: Yes. OEM/ODM customization is available for logos, sizes, wrench length, head height, surface finish, packaging, and large-size tool sets.
OEM / ODM (Optional)
We provide flexible OEM/ODM services:
- Custom Dimensions: Jaw/ring size, head height, wrench length, head width, and body thickness can be customized.
- Custom Branding: Laser engraving, steel stamping, screen printing, ink printing, labels, and private-label packaging.
- Custom Surface Finishes: Phosphate, black oxide, sandblasting, chrome plating, pearl nickel, and more.
- Custom Packaging: Hang cards, plastic holders, fabric pouches, color boxes, tool cases, and printed cartons.
- Custom Tool Sets: Popular 24–85mm sizes can be configured into professional maintenance sets.
- Sampling and Mass Production: Support for drawing-based or sample-based development, sample approval, and stable mass production.
Please send us your size list, drawings, branding artwork, or project requirements for a tailored solution.
