T-Slot Nuts

Manufacturer, Exporter & Supplier of T-Slot Nuts

T-Slot Nuts

KK Fasteners is a trusted manufacturer of T-Slot Nuts, designed to meet a wide range of industry standards, including DIN, ASTM, ISO, and BS. Our T-Slot Nuts are engineered for precision and durability, making them ideal for applications in various machining and assembly operations. We adhere to international standards, ensuring compatibility and reliability across global markets. Choose KK Fasteners for high-quality, standard-compliant T-Slot Nuts tailored to meet your exact needs.

T-Slot Nuts are indispensable components in machining, assembly, and various industrial applications, ensuring secure and stable connections. At KK Fasteners, we specialize in manufacturing T-Slot Nuts that meet global standards for quality and precision. Our products are engineered for strength and reliability, making them suitable for a wide range of industries. From heavy machinery to intricate assemblies, our T-Slot Nuts deliver dependable performance every time.

With a commitment to excellence, KK Fasteners provides custom solutions to meet your unique requirements. We offer a variety of T-Slot Nuts designed to fit specific applications, ensuring that your operations run efficiently and effectively. Our expert team is ready to assist you in finding the right fastening solutions. Reach out to us today at inquiry@kkfasteners.com and discover how we can help optimize your projects with our high-quality products.

Technical Specifications

Parameter Specification / Range
Material Variants Carbon Steel, Alloy Steel, Stainless Steel 304, Stainless Steel 316, Mild Steel
Grade Options Grade 4.8, Grade 8.8, Grade 10.9 (Carbon/Alloy Steel); A2-50, A2-70, A4-70 (Stainless Steel)
Thread Type Metric (M5 to M36), UNC (1/4" to 1-1/4"), UNF (available on request)
Slot Width Range 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm (custom widths available)
Height (T-profile) 3.5mm to 12mm depending on slot width and standard
Applicable Standards DIN 508, ISO 299, JIS B 1167, ASME B18.29.1 (T-slot nuts)
Type Variants Standard T-slot nut, Sliding T-nut, Drop-in T-nut, Long T-slot nut (extended length), Spring-loaded T-nut
Surface Finish Plain (self-color), Black oxide, Zinc-plated, Hot-dip galvanized, Passivated (SS grades), Dacromet, Geomet
Hardness (Steel) Grade 8.8: 245–310 HV; Grade 10.9: 320–380 HV
Tensile Strength Grade 8.8: 800 MPa min; Grade 10.9: 1040 MPa min; A4-70: 700 MPa min
Tolerance Class 6H (thread), h6/h8 (body width) per DIN 508
Certifications ISO 9001:2015; Material Test Reports (EN 10204 3.1/3.2); RoHS compliant finishes available

Standard Metric T-Slots Sizes

T Slots Nuts Dimension Diagram
Sizes1
(mm)
t1
(mm)
a1
(mm)
h1
(mm)
M4 5 10 - 11 3.5 - 4.5 8 - 10
M5 6 11 - 12.5 5 - 6 11 - 13
M6 8 14.5 - 16 7 - 8 15 - 18
M8 10 16 - 18 7 - 8 17 - 21
M10 12 19 - 21 8 -9 20 - 25
M12 14 23 - 25 9 - 11 23 - 28
M16 18 30 - 32 12 - 14 30 - 36

Stainless Steel T-Slot Nuts - Grades

T-slot nuts are used wherever a fastener must be repositioned along a linear channel without machining a new hole — making them foundational hardware in machine tooling, modular structures, and industrial automation. They appear across sectors wherever aluminum extrusion profiles, machine table beds, or fixture rails are specified.

  • CNC Machine Tool Fixtures
    Secure workholding clamps, vises, and stops to T-slot machine table beds; repositioned between jobs without disturbing the machined table surface.
  • Aluminum Extrusion Framing
    Connect brackets, panels, and accessories to structural extrusion profiles in machine guards, enclosures, and conveyor frames — core hardware for T-slot modular assembly.
  • Automotive Assembly Lines
    Mount ergonomic tool balancers, cable management arms, and operator fixtures to extrusion-based workstation structures; adjusted rapidly as production models change.
  • Robotic Cell Integration
    Attach perimeter guarding, sensor brackets, and end-effector mounting rails within robotic workcell extrusion frames; repositioned without downtime during cell reconfiguration.
  • Metrology & Inspection Equipment
    Fasten CMM fixtures and optical inspection jigs to granite or aluminum surface plates with T-slot beds; the sliding fit allows precise repositioning to tolerances under 0.01mm.
  • Solar Mounting Structures
    Secure rail clamps and module mounts to aluminum rail channels on rooftop and ground-mount solar arrays; stainless steel grades specified for 25+ year outdoor service life.
  • Exhibition & Display Systems
    Attach panel clips, signage holders, and lighting tracks to modular display extrusion frames; drop-in T-nuts allow tool-free repositioning between shows.
  • Semiconductor & Cleanroom Equipment
    Used in SS 316 grade to assemble process equipment frames and vacuum chamber fixtures where outgassing, particle generation, and corrosion resistance are critical parameters.

Duplex Steel T-Slot Nuts- Grades

  • UNS S32205 T-Slot Nuts
  • UNS S31803 T-Slot Nuts

Super Duplex Steel T-Slot Nuts - Grades

  • UNS S32750 T-Slot Nuts
  • UNS S32760 T-Slot Nuts

Inconel/Incoloy T-Slot Nuts - Grades

  • Inconel 600 T-Slot Nuts
  • Inconel 601 T-Slot Nuts
  • Inconel 625 T-Slot Nuts
  • Inconel 718 T-Slot Nuts
  • Incoloy 800 T-Slot Nuts
  • Incoloy 825 T-Slot Nuts

Monel T-Slot Nuts - Grades

  • Monel 400 T-Slot Nuts
  • Monel K500 T-Slot Nuts

Nickel T-Slot Nuts - Grades

  • Nickel 200 T-Slot Nuts
  • Nickel 201 T-Slot Nuts

Hastelloy T-Slot Nuts - Grades

  • Hastelloy C276 T-Slot Nuts
  • Hastelloy C22 T-Slot Nuts
  • Hastelloy B2 T-Slot Nuts
  • Hastelloy B3 T-Slot Nuts
  • Hastelloy X T-Slot Nuts

Titanium T-Slot Nuts - Grades

  • Titanium Grade 2 T-Slot Nuts
  • Titanium Grade 5 T-Slot Nuts

Tantalum T-Slot Nuts- Grades

  • UNS R05200 T-Slot Nuts
  • UNS R05252 T-Slot Nuts
  • UNS R05255 T-Slot Nuts
  • UNS R05400 T-Slot Nuts

Cupro Nickel T-Slot Nuts - Grades

  • CuNi 90/10 T-Slot Nuts
  • CuNi 70/30 T-Slot Nuts

Copper T-Slot Nuts - Grades

  • UNS C11000 T-Slot Nuts
  • UNS C10100 T-Slot Nuts
  • UNS C10200 T-Slot Nuts
  • UNS C12000 T-Slot Nuts
  • UNS C12200 T-Slot Nuts

Carbon Steel T-Slot Nuts - Grades

  • Carbon Steel AISI 1018 T-Slot Nuts
  • Carbon Steel AISI 1020 T-Slot Nuts
  • Carbon Steel AISI 1040 T-Slot Nuts
  • Carbon Steel AISI 1045 T-Slot Nuts

Alloy Steel T-Slot Nuts - Grades

  • Alloy Steel 4130 T-Slot Nuts
  • Alloy Steel 4140 T-Slot Nuts
  • Alloy Steel 4340 T-Slot Nuts
  • Alloy Steel 8620 T-Slot Nuts
  • ASTM A193 Alloy Steel Gr B7 T-Slot Nuts
  • ASTM A193 Alloy Steel Gr B7M T-Slot Nuts
  • ASTM A320 Alloy Steel Gr L7 T-Slot Nuts
  • ASTM A320 Alloy Steel Gr L7M T-Slot Nuts
  • ASTM A320 Alloy Steel Gr L43 T-Slot Nuts
  • ASTM A320 Alloy Steel Gr L43 T-Slot Nuts
  • ISO 898-1 Alloy Steel Gr 8.8 T-Slot Nuts
  • ISO 898-1 Alloy Steel Gr 10.9 T-Slot Nuts
  • ISO 898-1 Alloy Steel Gr 12.9 T-Slot Nuts

Brass T-Slot Nuts - Grades

  • UNS C21000 T-Slot Nuts
  • UNS C22000 T-Slot Nuts
  • UNS C22600 T-Slot Nuts
  • UNS C23000 T-Slot Nuts
  • UNS C24000 T-Slot Nuts
  • UNS C26000 T-Slot Nuts
  • UNS C26800 T-Slot Nuts
  • UNS C27000 T-Slot Nuts
  • UNS C27200 T-Slot Nuts
  • UNS C28000 T-Slot Nuts
  • UNS C33000 T-Slot Nuts
  • UNS C33500 T-Slot Nuts
  • UNS C34000 T-Slot Nuts
  • UNS C34200 T-Slot Nuts
  • UNS C35300 T-Slot Nuts
  • UNS C35600 T-Slot Nuts

Aluminium T-Slot Nuts - Grades

  • Aluminium Alloy 1050 T-Slot Nuts
  • Aluminium Alloy 1060 T-Slot Nuts
  • Aluminium Alloy 1060 T-Slot Nuts
  • Aluminium Alloy 1070 T-Slot Nuts
  • Aluminium Alloy 1080 T-Slot Nuts
  • Aluminium Alloy 1100 T-Slot Nuts
  • Aluminium Alloy 1145 T-Slot Nuts
  • Aluminium Alloy 2011 T-Slot Nuts
  • Aluminium Alloy 2014 T-Slot Nuts
  • Aluminium Alloy 2017 T-Slot Nuts
  • Aluminium Alloy 2024 T-Slot Nuts
  • Aluminium Alloy 2090 T-Slot Nuts
  • Aluminium Alloy 3003 T-Slot Nuts
  • Aluminium Alloy 5052 T-Slot Nuts
  • Aluminium Alloy 5083 T-Slot Nuts
  • Aluminium Alloy 6061 T-Slot Nuts
  • Aluminium Alloy 6063 T-Slot Nuts
  • Aluminium Alloy 6066 T-Slot Nuts
  • Aluminium Alloy 6082 T-Slot Nuts
  • Aluminium Alloy 7050 T-Slot Nuts
  • Aluminium Alloy 7075 T-Slot Nuts

Zirconium T-Slot Nuts - Grades

  • UNS R60700 T-Slot Nuts
  • UNS R60702 T-Slot Nuts
  • UNS R60704 T-Slot Nuts
  • UNS R60705 T-Slot Nuts
  • UNS R60706 T-Slot Nuts

Beryllium Copper T-Slot Nuts - Grades

  • UNS C17200 T-Slot Nuts
  • UNS C17300 T-Slot Nuts
  • UNS C17500 T-Slot Nuts
  • UNS C17510 T-Slot Nuts

Phosphor Bronze T-Slot Nuts - Grades

  • UNS C51000 T-Slot Nuts
  • UNS C51900 T-Slot Nuts
  • UNS C52100 T-Slot Nuts
  • UNS C54400 T-Slot Nuts

Silicon Bronze T-Slot Nuts - Grades

  • UNS C65100 T-Slot Nuts
  • UNS C65500 T-Slot Nuts
  • UNS C66100 T-Slot Nuts

Material & Grade Selection Guide

Carbon Steel (Gr. 8.8 / 10.9)
The standard choice for indoor machine tool and automation applications where corrosion exposure is controlled. Grade 8.8 handles most general-purpose clamping; Grade 10.9 is specified when peak torque and clamping force requirements are higher — such as vibration-intensive milling operations. Zinc-plated or black oxide finish adds moderate corrosion protection for dry environments.
Stainless Steel 304 (A2-70)
Suitable for mildly corrosive and washdown environments. Offers good resistance to oxidation and mild chemical exposure, with tensile strength to 700 MPa. Specified for food-grade conveyor structures, pharmaceutical clean-room framing, and outdoor architectural applications where salt spray exposure is occasional rather than continuous.
Stainless Steel 316 (A4-70)
The correct choice for marine environments, offshore structures, chemical processing, and any application involving prolonged chloride exposure. The addition of 2–3% molybdenum over SS 304 significantly improves pitting resistance in salt-laden or acidic conditions. Specified with passivated finish for maximum surface corrosion resistance.

Manufacturing & Quality Assurance

T-slot nuts are produced via CNC turning and milling from drawn bar stock or cold-forged preforms, depending on the size and quantity. The body profile — particularly the flanged undercut that engages the T-channel — is finish-machined to h6/h8 tolerance to guarantee consistent channel fitment without hand-fitting.
Each production lot undergoes: incoming raw material verification (mill certificates to EN 10204 3.1), in-process dimensional inspection using calibrated CMM and optical comparators, thread gauge verification (Go/No-Go, 100% for critical orders), hardness testing per lot (Vickers/Rockwell), and surface finish assessment.
KK Fasteners operates under ISO 9001:2015 certification with full lot traceability — every shipment is accompanied by a material test report identifying the heat number, mechanical test results, and dimensional inspection records. RoHS-compliant coating options are available on request for European CE-marked equipment applications.
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T-Slot Nuts - FAQs

T-slot nuts are fastening hardware with a rectangular or T-shaped cross-section that slides within the machined T-channel of machine tables, aluminum extrusion profiles, or structural rail systems. They accept a mating bolt through their threaded bore and, when tightened, clamp components in position at any point along the channel — without requiring a pre-drilled hole location.

The best material depends on the working environment. Stainless steel (SS 304 and SS 316) is preferred for corrosion resistance in outdoor or chemical environments, while carbon steel grades like 8.8 and 10.9 are used where higher strength and load-bearing capacity are required in industrial applications.

T-Slot Nuts are commonly manufactured in compliance with DIN 508, DIN 787, and ISO standards. These standards define precise dimensional tolerances, thread compatibility, and mechanical strength to ensure proper fit with machine tables and aluminum profile systems.

<p>T-Slot Nuts come in various sizes and profiles to fit different T-slot tracks. It's crucial to select the appropriate nut size and type that matches the specific dimensions of the T-slot track being used in your project.</p>

election depends on slot width, thread size, load requirements, and environmental exposure. For corrosion-prone environments, stainless steel is recommended, while high-load industrial setups typically require alloy or high-strength carbon steel variants.

A reliable supplier should offer material traceability, ISO-certified production, and compliance with DIN/ISO standards. KK Fasteners supplies precision-engineered T-Slot Nuts to global buyers with consistent quality control and export documentation support across multiple industries

<p>The load capacity of T-Slot Nuts varies based on their size, material, and design. It's essential to check the product specifications provided by the manufacturer to determine the specific load-bearing capacity of the T-Slot Nuts you intend to use.</p>

T-Slot Nuts - Export Destination

T-Slot Nuts Supplier in North America
Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States.
T-Slot Nuts Supplier in South America
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Falkland Islands, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
T-Slot Nuts Supplier in Europe
Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic (Czechia), Denmark, Estonia, Finland, France, Germany, Greece, Holy See, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom.
T-Slot Nuts Supplier in Asia
Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar, Nepal, Oman, Pakistan, Palestine, Philippines, Qatar, Saudi Arabia, Singapore, South Korea, Sri Lanka, State of Palestine, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, United Arab Emirates, Uzbekistan, Vietnam, Yemen.
T-Slot Nuts Supplier in Australia
Australia, Fiji, Kiribati, Marshall Islands, Micronesia, Nauru, New Zealand, Palau, Papua New Guinea, Samoa, Solomon Islands, Tonga, Tuvalu, Vanuatu.

Precision fastening components require consistency, compliance, and dependable supply. KK Fasteners delivers T-Slot Nuts with verified material quality, tight tolerances, and global shipping support tailored for industrial buyers. For technical assistance, custom specifications, or bulk pricing, connect with the engineering team to request a detailed quotation or product specification sheet.