A dream new material that surpasses the common sense of stainless steel! High strength and high corrosion resistance stainless steel!
Stainless steel was traditionally thought to have "good corrosion resistance but insufficient strength." By using martensitic steel, it was possible to achieve strength, but the level of corrosion resistance was still far from satisfactory. The Perfect Stainless Steel, developed through new steelmaking technology, is a completely new type of stainless steel that simultaneously solves these issues, offering high strength and high corrosion resistance. ● For other features and details, please refer to the catalog. You can access the direct sales site here: ↓ https://www.neziya.com/product/perfect.html
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basic information
Three Major Features of Perfect Stainless Material ● High Strength: Sufficient hardness throughout the core, with no deformation of the screw threads, allowing for high fastening strength. ● High Corrosion Resistance: Exhibits outstanding durability in environments that SUS410 could not handle, such as salt damage and acid rain. ● High Toughness: Possesses high toughness that fully satisfies the toughness test for head parts according to JIS standards. 【Product Lineup】 ● Excel-550 Self-Drilling Screw ● Excel-550 Hexagon Sunlock for Thick Plates ● Sunlock-550 ● Hexagon Socket Bolt / Hexagon Bolt (PS-550) ● Others (Tapping Screws, Wood Screws, Famcon) ● For other functions and details, please refer to the catalog.
Price information
Please refer to the following direct sales site or contact us.
Delivery Time
Applications/Examples of results
- Fixing of solar power generation panels and aluminum frames - Fixing of water stop eaves (hardware) ● For other functions and details, please contact us.
Detailed information
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Relationship between corrosion and pitting potential. For details, please refer to the table on our website.
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Mechanical properties (representative examples) For details, please refer to the table on the website. https://www.maruemu.co.jp/product/excel550.html
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Performance Comparison For details, please refer to the table on the website. https://www.maruemu.co.jp/product/excel550.html
Line up（3）
| Model number | overview |
|---|---|
| Excel-550 | https://www.maruemu.co.jp/product/excel550.html |
| Excel-550 for thick plates | https://www.maruemu.co.jp/product/excel550a.html |
| Sunrock-550 | https://www.maruemu.co.jp/product/sunlock550.html |
catalog（1）
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Company information
In 1927, our company started as a manufacturing and sales business focused on hardware products such as cotter pins, and in 1957, we began mass production as a pioneer of stainless steel screws. The frontier spirit that lives on at Maruemu Seisakusho has led to the creation of core technologies based on our history and the accumulation of skills, including "product development of new materials, material processing, and fastening technology."