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S304 S316 Carbon Steel Lock Nut Combination Kits

Material: Carbon Steel, S304,S316
Thread Size: M8 ~ M48
Surface Finish: Black，Galvanized

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Description

Key Attributes

Material: Carbon Steel, S304,S316
Thread Size: M8 ~ M48
Surface Finish: Black，Galvanized

Specification

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.