S304 S316 Carbon Steel Lock Nut Combination Kits
The HARDLOCK nut, developed by Japan's "Hardlock Industries" in 1974, consists of an upper nut with a bevel and a lower nut with a groove. It has extremely strong anti-loosening performance and will not loosen under harsh conditions such as high speed, vibration, and temperature difference.
Due to its ability to withstand huge pressure and friction, it was introduced into China along with Japan's Shinkansen technology in 2004 and is widely used in high-speed rail tracks.
The Lock nut combination kit OEM-manufactured by Tianlong has several advantages:
Tianlong Lock nut combination kit offers multiple material options
To meet the needs of the global automotive industry development, Tianlong Lock nut combination kit provides three material options: Carbon Steel, S304, and S316, which perfectly fit various automotive manufacturing requirements.
Among them, Carbon Steel focuses on high strength and is suitable for industrial heavy-duty equipment; S304 and S316 stainless steel have more excellent corrosion resistance, especially suitable for humid and coastal environments.
Material | Tensile Strength | Corrosion Resistance | Wear Resistance | Suitable Scenarios |
Carbon Steel | High (ideal for heavy loads) | Basic (susceptible to rust in humid environments) | Excellent (hardened surface) | Industrial heavy-duty equipment, high-stress mechanical connections |
S304 Stainless Steel | Moderate to high | Excellent (resists moisture, mild chemicals) | Good | Automotive parts, humid environments, general outdoor use |
S316 Stainless Steel | Moderate to high | Superior (resists saltwater, harsh chemicals) | Good | Coastal areas, marine applications, aggressive industrial environments |
The thread specifications of Tianlong Lock nut combination kit are fully covered
The thread sizes of Tianlong Lock nut combination kit cover M8 to M48, suitable for the connection needs of various small machinery to large engineering equipment.
Dual surface treatment processes
This Lock nut combination kit provides two surface treatment processes: black and galvanized.
Surface Treatment Process | Corrosion Resistance | Wear Resistance | Aesthetic Appearance | Suitable Scenarios | Cost |
Black | Moderate (resists light moisture) | Enhanced (hardened surface layer) | Uniform black, sleek industrial look | Dry indoor environments, general industrial use | Lower |
Galvanized | Excellent (protects against harsh elements like humidity, salt) | Good (zinc coating adds a protective layer) | Bright silver-gray, glossy finish | Outdoor settings, coastal areas, 潮湿 environments | Higher |
Combination kit design, more convenient and efficient
As a combination kit, you can match the lock nuts according to actual needs, reducing the tedious process of separate selection and providing users with a one-stop fastening solution.
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Products categories
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S45C 40Cr Hadlock Nuts - M8~M48 Thread Sizes
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Dual-Material Hardlock Nuts S45C 40Cr Options Black Galvanized Finishes for Anti-Loosening Excellence
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S304 S316 Carbon Steel Lock Nut Combination Kits
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M12-M30 Self-locking Eccentric Nuts with Stainless Steel or Carbon Steel Options
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Eccentric Self-lock Nuts Made of SS400 S45C SCM435 and SUS304
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Black Galvanized Hardlock Nuts, M8-M48 Thread Sizes in Carbon Steel
