STEEL THREADED RODS – CUSTOM-MADE FOR MECHANICAL APPLICATIONS
Steel threaded rods are fastening components used to connect and secure mechanical parts. Nakaumi Vietnam Co., Ltd. manufactures steel threaded rods in multiple material grades, sizes and lengths, with custom production options from 30 mm to 4,000 mm for different mechanical and industrial requirements.
1. Steel Threaded Rods for Mechanical Applications
Steel threaded rods are used for connecting and securing mechanical components in assembly and fabrication applications. With continuous external threading, the rods can be combined with compatible fastening components to create threaded connections according to specific mechanical requirements.
Nakaumi Vietnam provides steel threaded rods in different material grades, sizes and lengths. Custom manufacturing allows the rod dimensions to be matched with specific application requirements.
2. Material, Strength Grade and Surface Treatment
The steel threaded rods are available in the following material grades:
- SS400
- S35C
- S45C
- SCM435H
- SCM440H
- SNB7
Strength grades 4.8 and 6.8 are available upon request.
The surface treatment is blue-white zinc plating with Cr3+. This surface treatment is applied to the threaded rods as part of the product specification.
Product Specifications
Specification Details
- Material SS400, S35C, S45C, SCM435H, SCM440H, SNB7
- Strength Grade 4.8, 6.8 upon request
- Surface Treatment Blue-white zinc plating with Cr3+
- Metric Sizes M6 – M24
- Inch Sizes W1/4 – W7/8
- Length 30 mm – 4,000 mm
- Packaging 20 kg per pack


3. Custom Lengths from 30 mm to 4,000 mm
Steel threaded rods can be manufactured in required lengths ranging from 30 mm to 4,000 mm. Custom-length production can reduce the need for additional cutting at construction sites and help match the rod length with specific fabrication or installation requirements.
Manufacturing according to required dimensions can also reduce the need for unnecessary connecting components where a suitable rod length is available.
4. Applications of Steel Threaded Rods
Steel threaded rods are primarily used for connecting and securing mechanical components. They are suitable for applications related to:
- Mechanical engineering
- Industrial production
- Mechanical assembly
- Fabrication
- Construction and installation work
The availability of different steel grades, sizes and lengths allows the threaded rods to be used for various fastening and connection requirements.

Nakaumi steel threaded rods for mechanical applications
5. Packaging for Transportation
Steel threaded rods are carefully packaged in 20 kg packs and securely bundled for transportation to construction sites and other application locations.
The packaging configuration supports convenient handling and transportation while keeping the rods securely bundled during delivery.
6. Nakaumi Vietnam – Steel Threaded Rod Manufacturer and Supplier
Nakaumi Vietnam Co., Ltd. manufactures and supplies threaded rods for mechanical and industrial applications. The company provides steel threaded rods in different material grades, sizes and lengths, including custom-made specifications.
Its listed certifications include ISO 9001:2015 and ISO 14001:2015. The company serves customers nationwide and internationally.
For steel threaded rods requiring specific material grades, dimensions or lengths, Nakaumi Vietnam provides product consultation based on the required specifications.
Nakaumi Vietnam Co., Ltd. – Steel Threaded Rods for Mechanical and Industrial Applications
Contact Nakaumi Vietnam Co., Ltd. for further consultation on steel threaded rods, including material grades, sizes and custom lengths.