Full spectrum of industrial fastening solutions | Covering both standard and custom parts
MOQ: 1,000 pieces · Lead time: 3 days · Custom packaging available.
Confirm specifications and the lead-time start date in your quotation. Shipping time is additional.
Our A194 high strength heavy hex nuts are designed for demanding industrial fastening applications where stable tightening, reliable thread engagement, and strong assembly performance are required. The product features a heavy hexagon shape, a black surface finish, and internal metric threads suitable for matching with compatible bolts, threaded rods, and washers.
Available sizes include M12, M14, M16, M18, M20, M22, M24, M27, and M30, making this product suitable for machinery assembly, industrial equipment, engineering projects, maintenance repair, and heavy-duty fastening use.
The larger heavy hex structure provides more wrench contact area compared with regular hex nuts, helping improve installation convenience in industrial fastening work.
| Item | Description |
|---|---|
| Product Name | A194 High Strength Heavy Hex Nut |
| Product Type | Heavy Hex Nut / Hexagon Nut |
| Standard / Specification | A194 |
| Thread Type | Metric Thread |
| Available Sizes | M12, M14, M16, M18, M20, M22, M24, M27, M30 |
| Surface Finish | Black Finish |
| Shape | Heavy Hexagon |
| Application | Industrial Equipment, Machinery Assembly, Engineering Projects, Maintenance Repair |
| Matching Products | Bolts, Threaded Rods, Washers |
Industrial equipment and machinery often require fastening parts with higher strength and better tightening stability. These A194 heavy hex nuts are suitable for applications where regular nuts may not meet the fastening requirement.
With multiple metric sizes available from M12 to M30, buyers can match different bolts and threaded rods in one purchasing plan, reducing sourcing time and communication cost.
The heavy hexagon shape provides a larger wrench contact area, making installation and removal more practical for repair teams and industrial maintenance workers.
This product is suitable for importers, distributors, engineering contractors, equipment repair suppliers, and industrial buyers who need repeated or mixed-size purchases.
| Application Area | Typical Use |
|---|---|
| Industrial Machinery | Equipment connection and component fastening |
| Engineering Projects | Heavy-duty fastening with bolts and washers |
| Maintenance Repair | Replacement nuts for machinery and equipment |
| Heavy Equipment | Used in large mechanical fastening positions |
| Hardware Distribution | Suitable for wholesale and industrial supply |
| Threaded Rod Assembly | Used with compatible metric threaded rods |
| Metric Size | Application Direction |
|---|---|
| M12 | Medium industrial fastening |
| M14 | Machinery and equipment assembly |
| M16 | General heavy-duty fastening |
| M18 | Engineering and repair use |
| M20 | Industrial machinery fastening |
| M22 | Heavy equipment connection |
| M24 | Large-size fastening applications |
| M27 | Engineering project fastening |
| M30 | Heavy-duty industrial fastening |
A1: This product is an A194 high strength heavy hex nut.
A2: Available sizes include M12, M14, M16, M18, M20, M22, M24, M27, and M30.
A3: The product has a black finish.
A4: This product is a heavy hex nut, with a larger hex structure than a regular hex nut.
A5: It is suitable for industrial machinery, equipment repair, engineering projects, heavy-duty fastening, and threaded rod assembly.
A6: Yes. It can be used with compatible metric bolts, threaded rods, and washers.
A7: Yes. Mixed-size orders can be arranged according to your size list and quantity requirements.
A8: Please provide the size, quantity, A194 grade requirement, surface finish, packing requirement, and delivery destination.
Provide the required A194 grade and standard revision, dimensional standard, thread diameter and pitch, nut quantity, specified finish and matching bolt or stud specification. Do not use the standard name alone as the complete material or grade requirement.
Ask for material inspection reports, dimensional inspection reports and batch traceability with your quotation. If EN 10204 3.1 or 3.2 documentation or third-party inspection is required, state the required certificate type and inspection body. The issuing party, inspection scope and approval arrangements are confirmed before ordering.
Include any project-specific service requirements, approved drawing, lot marking, packing schedule and destination. Suitability for a particular flange or pressure-related service must be checked against the project engineering specification; the product listing alone is not project approval. MOQ, packing quantity and production lead time are confirmed separately in the quotation.
Prepare your list using our oil and gas fastener sourcing guide or review project flange fastener supply.
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Complies with major global standards such as ISO/DIN/GB/ANSI/JIS
Standard parts + customized parts, one-stop solution for all your fastening needs
Tolerance control far exceeds industry standards, ranging from 4.8 to 12.9 grades.
Customization based on provided drawings/samples/working conditions; rapid prototyping and mass production delivery.
Trusted by global manufacturers for fastener solutions
International Organization for Standardization (ISO) standards
German Industrial Standards
Chinese National Standards
American National Standards
Japanese Industrial Standards
Bulk fastener quotations · MOQ 1,000 pieces
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Lead time: 3 days. Custom packaging available. Shipping time and order details are confirmed in your quotation.