T-nuts are specialized fastening components characterized by their T-shaped cross-section, designed to be inserted into T-slots or channels in rails, frames, or structural materials. This unique design allows for easy positioning, adjustment, and secure locking within the slot, making them ideal for modular assembly systems, industrial machinery, and construction applications where frequent reconfiguration or quick installations are required. The self-aligning feature of T-nuts ensures a stable connection, reducing the need for precise pre-drilling and enhancing assembly efficiency.
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Standard
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Country/Region
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Description
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ISO 12300
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International
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Specifies dimensions and requirements for T-nuts used in structural steelwork
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DIN 6885
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Germany
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Defines T-nuts with metric threads, detailing shapes, tolerances, and insertion methods
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ASME B18.25.1
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USA
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Covers inch-series T-nuts, including thread specifications and slot compatibility
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GB/T 37 - 2018
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China
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Details product standards for T-nuts used in mechanical and construction assemblies
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JIS B 1189
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Japan
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Japanese standard for T-nuts, specifying dimensional accuracy and strength ratings
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Grade
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Material
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Tensile Strength (MPa)
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Application Scenarios
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4.8
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Low-carbon steel (e.g., Q235)
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400/320
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General industrial assembly, light-duty modular systems
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8.8
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Medium-carbon steel (e.g., 45# steel)
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800/640
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Heavy machinery, automotive fixtures, and industrial robotics
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10.9
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Alloy steel (e.g., 35CrMo)
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1000/900
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High-stress applications in construction cranes and heavy equipment
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A2-70 (Stainless Steel)
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304 stainless steel
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700
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Corrosion-resistant environments (food processing, indoor humid areas)
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A4-80 (Stainless Steel)
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316 stainless steel
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800
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Marine applications, chemical plants, and coastal installations
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Aluminum Alloy
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6061-T6 aluminum
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276
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Lightweight structures in aerospace and consumer electronics
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Nylon / Plastic
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Nylon 6/6, Polypropylene
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-
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Insulation, non-conductive, or vibration-dampening applications
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Treatment Method
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Abbreviation
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Description
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Zinc Plating
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Zn
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Basic rust protection (clear, blue, or yellow finishes) for indoor use
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Hot-Dip Galvanizing
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HDG
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Superior corrosion resistance, suitable for outdoor and heavy-industrial environments
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Black Oxide Coating
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Black
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Creates a non-reflective surface with moderate rust resistance for internal components
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Dacromet Coating
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Dacromet
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Chromium-free, high-performance coating offering excellent corrosion and anti-galling properties
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Nickel Plating
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Ni
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Enhances appearance and provides moderate corrosion protection for visible parts
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Anodizing (Aluminum T-nuts)
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-
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Increases surface hardness and corrosion resistance, available in various colors
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