Industrial-Grade Square Nuts 6 Finishes 4.8-12.9 Grades for Any Project
Material: 40Cr A3, Q235,45#,10B21,ML08L,SC435...
Thread Size: M3-M100
Surface Finish: Plain,black,ZP,HDG,Nickl,plating,Dacromet...
Grade: 4.8,8.8,10.9,12.9
Still deciding? Get samples first, Contact US !
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Key Attributes
Material: 40Cr A3, Q235,45#,10B21,ML08L,SC435...
Thread Size: M3-M100
Surface Finish: Plain,black,ZP,HDG,Nickl,plating,Dacromet...Grade: 4.8,8.8,10.9,12.9
Specification
The main function of square nuts is to serve as fasteners, used to connect parts that require repeated disassembly, such as bearings, couplings, gears, and other components in mechanical equipment. By tightening with bolts or screws, square nuts can be easily installed and removed, facilitating maintenance and replacement of parts.
Core Advantages of Tianlong Square Nuts
1. FullDimension Material Matrix
HighStrength Alloys:
40Cr (Alloy Structural Steel): Tensile strength ≥980MPa, hardness up to HRC50+ after quenching, suitable for heavy machinery and highpressure pipelines.
10B21/ML08L (Cold Heading Steel): Excellent plasticity and formability, ideal for mass production of smallsized nuts (M3M16) via cold processing.
Economical Carbon Steels:
Q235/A3 (LowCarbon Steel): Low cost and easy welding, used in construction scaffolding and temporary supports.
45 Steel (MediumCarbon Steel): Balanced mechanical properties, widely applied in wind turbine bases and agricultural machinery frames.
SpecialScenario Materials:
SC435 (FreeCutting Steel): Added sulfur and phosphorus for reduced cutting resistance, suitable for highprecision nuts processed on automated production lines.
2. UltraWide Specification Coverage (Solving 'HardtoFind NonStandard Parts' Pain Points)
Micro Nuts (M3M6): Fit micro bolts in electronic devices and precision instruments.
ExtraLarge Sizes (M64M100): Specifically designed for giant structures like wind turbine towers and offshore platforms.
NonStandard Customization: Supports imperial threads (e.g., 1/4"20UNF), trapezoidal threads (Tr), and other special thread profiles.
3. 6 Layer Surface Treatment System
Corrosion Resistance Grades & Scenario Adaptation:
Basic Protection:
Plain (Natural): Uncoated, lowest cost, suitable for dry indoor environments.
Black Oxide: Forms Fe₃O₄ oxide film, used in machine tools and automotive interiors.
Intermediate Protection:
Zinc Plated: Suitable for outdoor machinery and humid workshops.
Nickel Plated: Applied in kitchen equipment, motor terminals, etc.
IndustrialGrade Protection:
HotDip Galvanizing (HDG): For heavy corrosionexposed outdoor scenarios like bridges and iron towers.
Dacromet: Chromiumfree ecocoating used in new energy vehicle battery brackets and aerospace components.
As a high-value Chinese fastener manufacturer and customizer, Tianlong delivers one-stop high-performance fastener solutions worldwide, combining reliable quality with competitive pricing.
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Industrial-Grade Square Nuts 6 Finishes 4.8-12.9 Grades for Any Project
Material: 40Cr A3, Q235,45#,10B21,ML08L,SC435...
Thread Size: M3-M100
Surface Finish: Plain,black,ZP,HDG,Nickl,plating,Dacromet...
Grade: 4.8,8.8,10.9,12.9
Still deciding? Get samples first, Contact US !
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Hebei Tianlong Fastener Co., Ltd
Contact: Sophia
Tel: +86 18630088852
Tel: +86 15132010868
E-mail: [email protected]
E-mail: [email protected]
Add: Tianlong Company, Yongnian District, Handan, Hebei, China
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