T-Nut

T-Nuts Manufacturer and Wholesale Supplier for Wood

KYA supplies T-nuts, also known as tee nuts or four-prong threaded nuts, for professional woodworking, furniture manufacturing and industrial wood panel assembly. These metal fasteners provide reusable internal threads in wood, plywood, MDF, particle board and other compatible panel materials.

Our T-nut range includes metric M5, M6, M8, M10 and M12 sizes, together with selected inch-thread models such as 1/4-inch and 3/8-inch T-nuts. KYA lists zinc-coated carbon steel four-prong T-nuts for applications requiring a threaded connection between wood components and compatible machine screws or bolts.

KYA works with furniture manufacturers, cabinet factories, woodworking businesses, industrial hardware distributors and building material importers. Buyers can select the appropriate T-nut according to thread size, barrel dimensions, flange geometry, panel thickness and installation requirements.

What Is a T-Nut?

A T-nut is a metal fastener with an internally threaded barrel and a flat flange. Four-prong T-nuts have pointed projections extending from the flange to engage a wood or wood-based panel during installation.

The threaded barrel fits into a prepared mounting hole, while the prongs are embedded into the surrounding material. Once correctly seated, the T-nut provides a metal thread for a matching machine screw or bolt.

Unlike an ordinary wood screw that forms its own holding threads in the substrate, a T-nut provides a reusable machine-thread connection. This allows compatible components to be assembled, removed and reassembled without repeatedly cutting new threads into the wood.

The holding performance of a T-nut depends on the panel density, material thickness, mounting hole, flange and prong engagement, bolt tightening method and loading direction.

Types of T-Nuts Available from KYA

Four-Prong T-Nuts for Wood

KYA's four-prong T-nuts are designed to establish threaded mounting points in compatible wood and wood-based panels. The four prongs extend from the flange and engage the workpiece to help prevent the nut from rotating when the mating bolt is tightened.

These fasteners are commonly used in furniture frames, cabinets, plywood panels, wooden fixtures, speaker enclosures and other assemblies requiring removable bolted connections.

Metric T-Nuts: M5, M6, M8, M10 and M12

KYA lists metric T-nuts in several nominal thread sizes, including M5, M6, M8, M10 and M12. Metric T-nuts are designed for compatible metric bolts and machine screws of the correct diameter and thread pitch.

The nominal M designation identifies the thread diameter, not the overall flange diameter or the size of the installation hole. Barrel dimensions, flange size and required mounting hole must be confirmed separately.

Inch-Thread T-Nuts: 1/4-Inch and 3/8-Inch

KYA also supplies selected inch-thread T-nuts for applications using imperial fasteners. The current category includes 1/4-inch and 3/8-inch T-nut products.

When sourcing inch-thread products, specify both nominal thread diameter and threads per inch. For example, a 1/4-inch T-nut should not be assumed compatible with every 1/4-inch threaded bolt without verifying the exact thread specification.

Zinc-Plated Carbon Steel T-Nuts

KYA lists zinc-coated carbon steel T-nuts for woodworking and furniture assembly. Zinc plating provides a protective surface that helps reduce corrosion under suitable service conditions.

For outdoor, continuously damp, chemically exposed or other corrosive environments, buyers should confirm the required coating specification and whether the selected product meets the application's corrosion-resistance requirements.

Metric and Inch T-Nut Sizes

KYA offers T-nut products for different threaded fastening requirements. The table below summarizes representative sizes displayed in the current product category.

Listed Size Thread System Selection Information
M5 Metric Includes a listed M5 × 8 mm four-prong model
M6 Metric Confirm thread pitch, barrel and flange dimensions
M8 / 8 mm Metric Confirm the exact model and installation dimensions
M10 Metric Check matching bolt and panel requirements
M12 Metric Verify flange, barrel and mounting clearance
1/4" Imperial Confirm threads per inch and mating bolt
3/8" Imperial Confirm threads per inch and complete nut dimensions

Sizes in this table identify listed T-nut products. Exact thread pitch, barrel length, flange diameter, prong height and installation-hole dimensions depend on the individual model. Confirm these details before production purchasing.

Selected KYA T-Nut Products

Explore representative T-nut models from the KYA range. The individual product pages provide additional information about their specifications and applications.

Product Listed Specification Details
M5 × 8 mm Four-Prong T-Nut M5 internal thread, 8 mm listed length View Product
1/4-Inch T-Nut Inch-thread T-nut View Product
3/8-Inch T-Nut Inch-thread T-nut View Product

T-Nut Dimensions and Selection Guide

Selecting the correct T-nut requires more than matching its nominal thread size. The nut must fit the panel, accommodate the mating bolt and provide appropriate retention for the intended assembly.

Specification Description Buyer Check
Internal Thread Metric or imperial female thread Match bolt diameter, pitch and thread standard
Barrel Diameter Outside diameter of the threaded barrel Confirm the appropriate drilled-hole diameter
Barrel Length Axial length of the threaded body Check panel thickness and available clearance
Flange Diameter Outside diameter of the T-nut flange Verify contact area and mounting clearance
Prong Height Projection of the anchoring prongs Match panel thickness and material density
Material Carbon steel and model-specific material options Confirm required strength and material specification
Surface Finish Zinc coating or specified finish Check corrosion-resistance requirements
Panel Material Solid wood, plywood, MDF or particle board Confirm prong retention and joint performance

T-nut dimensions are not identical across manufacturers or product families. Always verify the dimensions required by your drawing, assembly or existing part before ordering replacement T-nuts.

Four-Prong T-Nuts vs. Threaded Inserts

Both four-prong T-nuts and threaded inserts provide reusable internal threads in wood, but their installation methods and retention designs differ.

Feature Four-Prong T-Nut Screw-In Threaded Insert
Retention Design Flange and anchoring prongs External threads engaging the substrate
Installation Inserted into a prepared hole and seated from the accessible side Screwed into a prepared hole using a suitable driver
Access Requirement Usually requires access to the reverse side of the panel May be installed from the accessible face
Internal Thread For compatible machine bolts or screws For compatible machine bolts or screws
Selection Focus Prong grip, flange and barrel dimensions External thread, installation depth and substrate retention

Choose the fastening method according to panel access, assembly design, expected load and whether the connection must be repeatedly disassembled.

Applications of T-Nuts in Woodworking and Manufacturing

Wooden Furniture and Bed Frames

Four-prong T-nuts are used in furniture components and bed frames where a machine bolt must connect a wooden panel or frame component. They create a reusable threaded mounting point for assembly, servicing or component replacement.

The T-nut and mating bolt must be selected according to the panel thickness, connection geometry and expected loading conditions.

Plywood, MDF and Particle Board Assembly

T-nuts can provide metal internal threads in suitable plywood, MDF and particle board panels. Their prongs engage the workpiece around a drilled hole, allowing a machine screw or bolt to secure another component.

Panel density, edge distance and thickness affect installation quality and holding performance. For low-density or thin panels, verify that the prongs can be seated without splitting, tearing or weakening the substrate.

Cabinets and Commercial Furniture

Furniture manufacturers and cabinet producers use threaded fastening systems for removable panels, furniture fittings and assembled components. T-nuts may be suitable where rear access is available and the design requires a machine-thread connection.

Loudspeaker Cabinets and Audio Enclosures

T-nuts are used in loudspeaker enclosures and audio equipment cabinets to provide reusable threaded mounting points for compatible speaker components, mounting hardware and wooden panels.

Select the nut dimensions according to the cabinet panel, mounting hole arrangement and required bolt engagement.

Climbing Wall Panels and Holds

Four-prong T-nuts are commonly used in plywood climbing-wall panels to provide threaded mounting points for compatible climbing holds. They are normally positioned on the reverse side of the panel before the holds are attached with suitable bolts.

Climbing wall applications are load-critical. The selected nut, bolt, plywood panel and complete mounting assembly must meet the applicable safety and engineering requirements. Use the specified thread, hole dimensions and installation method for the approved climbing-wall system.

Woodworking Fixtures and Industrial Equipment

T-nuts can also be used in woodworking jigs, fixtures, workbenches and other compatible panel assemblies where removable metal-thread fastening points are required. Verify the connection requirements and suitable substrate before installation.

How to Install Four-Prong T-Nuts in Wood

Correct installation helps the T-nut seat properly and provides suitable engagement with the workpiece. The mounting-hole diameter and seating method should always match the actual product dimensions.

  1. Confirm the T-nut and bolt. Check thread diameter, pitch, barrel dimensions and the mating fastener.
  2. Prepare the workpiece. Confirm that the panel is suitable for the T-nut and has sufficient thickness and edge clearance.
  3. Drill the mounting hole. Use the hole diameter specified for the selected barrel. Do not use nominal thread diameter as the drill size.
  4. Insert the barrel. Position the T-nut on the required side of the panel and align the barrel with the prepared hole.
  5. Seat the four prongs. Press or carefully tap the nut into the wood until the flange is properly seated, following the applicable installation method.
  6. Check the connection. Install the matching bolt and confirm correct thread engagement, seating and joint performance.

Avoid excessive impact or tightening force that may damage the panel or cause the nut to rotate. For production applications, verify the installation method using the actual wood material, T-nut and bolt combination.

T-Nut Material, Zinc Coating and Corrosion Resistance

KYA lists carbon steel T-nuts with zinc-plated surfaces. The coating provides protection against oxidation and corrosion during suitable handling, storage and service conditions.

For standard interior furniture and woodworking applications, zinc-plated carbon steel is a commonly used material combination. However, actual corrosion resistance depends on the coating specification and working environment.

For outdoor installations, high humidity, salt exposure or chemically aggressive environments, specify the required corrosion performance and confirm a suitable product rather than assuming that standard zinc plating is sufficient.

T-Nut Bulk Supply for Furniture and Hardware Distributors

KYA supplies T-nuts to furniture manufacturers, woodworking factories, hardware distributors, cabinet producers and industrial buyers sourcing threaded fastening components in bulk.

When ordering for a production line or purchasing replacement hardware, consistent dimensions are important for reliable assembly and compatibility with existing drilled panels and mating bolts.

For a quotation, please provide the following details:

  • Required metric or imperial thread size
  • Thread pitch or threads per inch
  • Barrel diameter and barrel length
  • Flange diameter and prong dimensions
  • Material and surface finish
  • Installation-hole and panel dimensions
  • Application and workpiece material
  • Order quantity and packaging requirements
  • Destination country and delivery requirements

If you need an equivalent to an existing T-nut, include the original part number, a dimensional drawing or a sample. KYA can review the requested specification and provide quotation information for the selected model.

Request a Wholesale T-Nut Quote

Frequently Asked Questions About T-Nuts

What is a four-prong T-nut?

A four-prong T-nut is a metal fastener with an internally threaded barrel, a flange and four pointed prongs. It is installed into a prepared hole in a compatible wood panel to provide a reusable threaded connection for a matching bolt or machine screw.

What T-nut sizes does KYA supply?

KYA lists metric T-nuts in M5, M6, M8, M10 and M12 sizes, along with selected 1/4-inch and 3/8-inch products. Exact barrel, flange and prong dimensions depend on the selected model.

Are M8 T-nuts and 8 mm T-nuts the same?

M8 identifies a nominal metric internal thread diameter of 8 mm. A product described as an 8 mm T-nut may refer to an M8 thread or another dimension, depending on the supplier. Confirm the exact thread pitch, barrel and flange specifications before assuming interchangeability.

Can metric T-nuts be used with imperial bolts?

Not unless the threads are specifically compatible. Metric and imperial thread systems may differ in diameter and pitch even when their nominal sizes appear similar. Always match the exact internal thread to the mating bolt.

What is the difference between a T-nut and a threaded insert?

A typical four-prong T-nut uses a flange and prongs to anchor in a wood panel, usually from the reverse side. A screw-in threaded insert uses external threads to engage the substrate. Both provide internal threads, but their installation and retention methods differ.

Can T-nuts be used in plywood, MDF and particle board?

Yes, T-nuts can be installed in suitable plywood, MDF, particle board and other wood-based panels. Retention depends on panel density, thickness, installation-hole dimensions, prong engagement and loading conditions. Test the assembly before production use.

What drill hole size should I use for a T-nut?

The drill hole must suit the outside diameter of the T-nut barrel and the installation specification. It is not determined solely by the nominal thread size. Confirm the required hole diameter for the actual product before drilling production panels.

How do I prevent a T-nut from spinning in wood?

Use the correct mounting-hole size, seat the flange and prongs properly, and ensure the wood is suitable for the required connection. Incorrect hole dimensions, damaged prongs, low-density panels or excessive tightening may cause the nut to rotate.

Are four-prong T-nuts suitable for furniture assembly?

Yes. Four-prong T-nuts are commonly used in wooden furniture, bed frames, cabinets, benches and related assemblies where a reusable threaded connection is required. Select the nut according to the panel, bolt and joint design.

Can KYA T-nuts be used for climbing-wall holds?

Four-prong T-nuts are used in suitable plywood climbing-wall panels. However, the fastener, bolt, mounting panel and completed climbing-wall assembly must meet the applicable engineering and safety requirements. Confirm the specified product dimensions and installation method before use.

Are zinc-plated T-nuts suitable for outdoor use?

Zinc plating provides corrosion protection, but outdoor suitability depends on coating specification, exposure conditions and expected service life. Standard zinc-plated carbon steel should not automatically be assumed suitable for permanently wet or highly corrosive environments.

What information is needed for a wholesale T-nut quotation?

Provide the thread size and pitch, barrel dimensions, flange diameter, prong configuration, material, finish, application, panel thickness, order quantity, packaging requirements and destination country. Include a drawing or sample when matching an existing T-nut.

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