KYA M5 × 8mm 4-Prong T-Nuts are zinc-plated carbon steel threaded inserts designed for installation in wood, plywood, particle board and other compatible wood-based panels. Four prongs bite into the material around the mounting hole to help resist rotation when an M5 bolt is tightened or removed.
The featured model has an M5 internal thread and a listed total length of 8mm. Typical applications include furniture manufacturing, cabinets, bed frames, climbing-wall panels, loudspeaker boxes and other assemblies requiring a reusable metric threaded connection in wood.
The zinc-plated surface provides corrosion protection for the carbon steel body. For continuously wet, exterior or corrosion-sensitive environments, confirm whether the standard zinc-plated version provides sufficient protection for the required service conditions.
| Specification | Details |
| Product | M5 × 8mm 4-Prong T-Nut |
| Thread Size | M5 |
| Listed Total Length | 8mm |
| Prong Count | 4 Prongs |
| Material | Carbon Steel |
| Surface Treatment | Zinc Plating |
| Primary Materials | Wood, Plywood, Particle Board and Compatible Wood-Based Panels |
| Typical Applications | Furniture, Cabinets, Bed Frames, Climbing Walls, Loudspeaker Boxes and Wood Assemblies |
The exact thread pitch, barrel diameter, barrel length, flange diameter and required installation-hole diameter are not specified for this M5 × 8mm model on the current product page. Buyers requiring exact dimensional interchangeability should confirm these dimensions before placing a bulk order.
A 4-prong T-nut provides a metal internal thread inside a wood component. The cylindrical threaded section fits into a pre-drilled hole while the four prongs are driven into the surrounding wood.
Once seated, the prongs help resist rotation as the mating bolt is tightened. This allows components to be assembled, removed and reassembled with a machine-thread bolt instead of repeatedly driving a wood screw into the same material.
The featured T-nut uses an M5 internal thread. Select the mating bolt according to the required thread specification and application.
Where thread pitch or dimensional interchangeability is critical, confirm the exact M5 thread specification before ordering rather than relying on the nominal M5 designation alone.
Four prongs are positioned around the flange and embed into the wood during installation. The prongs help prevent the T-nut from rotating when a mating bolt is tightened.
Holding performance depends on the wood species, panel density, material thickness, installation quality, hole dimensions and loading direction. For structural or load-critical assemblies, verify the required performance for the complete joint rather than relying on the T-nut alone.
The M5 × 8mm T-nut is manufactured from carbon steel with a zinc-plated surface. Zinc plating helps protect the underlying steel against oxidation during normal handling and suitable indoor service conditions.
For occasional moisture exposure, zinc plating provides more protection than uncoated carbon steel. For continuously wet, exposed outdoor, salt, chemical or other aggressive environments, confirm the required corrosion-resistance level before selecting the fastener.
The KYA product range lists M5 T-nuts in 8mm, 10mm and 12mm lengths. The base-diameter and prong-height figures below are listed as M5-series ranges and should not be interpreted as exact dimensions for every individual M5 model.
| Thread | Available Lengths | Listed Base Diameter Range | Listed Prong Height Range | Material |
|---|---|---|---|---|
| M5 | 8 / 10 / 12mm | 15–18mm | 6–7mm | Zinc-Plated Steel |
KYA lists metric 4-prong T-nuts from M4 to M10 in multiple lengths. The table below is a series reference for buyers comparing available thread sizes.
| Thread | Lengths (mm) | Base Diameter (mm) | Prong Height (mm) | Material |
|---|---|---|---|---|
| M4 | 6 / 8 / 10 | 12–15 | 5–6 | Zinc-Plated Steel |
| M5 | 8 / 10 / 12 | 15–18 | 6–7 | Zinc-Plated Steel |
| M6 | 8 / 10 / 12 / 15 | 18–20 | 7–8 | Zinc-Plated Steel |
| M8 | 10 / 12 / 15 / 20 | 20–25 | 8–10 | Zinc-Plated Steel |
| M10 | 12 / 15 / 20 / 25 | 25–30 | 10–12 | Zinc-Plated Steel |
Base diameter and prong height in this table are listed as ranges for each thread-size family. Contact KYA Fasteners when an exact flange diameter, barrel dimension or prong dimension is required for production drawings or replacement parts.
Drill a hole suitable for the T-nut barrel, insert the barrel through the hole and align the four prongs with the wood surface. Seat the flange by pressing or carefully driving the T-nut into the material until the prongs are embedded.
The installation-hole diameter should be matched to the actual barrel diameter. Because the exact barrel diameter for this M5 × 8mm KYA model is not specified on the current page, confirm the required hole size before setting up production drilling.
Avoid excessive impact on thin, brittle or low-density panels. Installation method and hole size should be selected according to the substrate so the prongs can engage without splitting or damaging the panel.
M5 × 8mm T-nuts are designed to create a reusable threaded connection in suitable wood and wood-based panels.
Rock climbing wall holds and plywood climbing panels
Plywood assemblies
Particle board and MDF furniture
Wooden furniture and cabinets
Bed frames and furniture components
Loudspeaker boxes and audio equipment mounting
Fixtures requiring a removable metric bolt connection
General woodworking and panel assembly
T-nuts can be used in plywood, MDF, particle board and solid wood where the panel has sufficient thickness and density to retain the prongs.
Panel properties vary significantly. Before volume production, test the T-nut with the actual substrate, panel thickness, bolt and tightening method to confirm that the installation does not split the material or allow the insert to rotate.
Four-prong T-nuts are commonly installed on the rear side of plywood panels to provide threaded mounting points for compatible climbing-wall holds.
For climbing-wall applications, confirm the required thread specification, panel thickness, hole size, T-nut dimensions, bolt engagement and applicable installation requirements before use. The complete wall and hold assembly should meet the required project safety specifications.
For replacement parts or production purchasing, the nominal M5 × 8mm description may not provide every dimension required for interchangeability.
| Buyer Check | What to Confirm |
|---|---|
| Thread Size | M5 and required mating bolt specification. |
| Thread Pitch | Confirm when matching an existing bolt or drawing. |
| Total / Installed Length | Featured model is listed as 8mm. |
| Barrel Diameter | Required to determine the correct installation-hole diameter. |
| Flange Diameter | Confirm when clearance or load-bearing area is critical. |
| Prong Dimensions | Check against panel thickness and substrate density. |
| Surface Finish | Zinc plated; confirm service environment and corrosion requirements. |
| Substrate | Wood, plywood, MDF, particle board or other compatible material. |
Free samples are available for evaluation. When requesting a sample, provide the required thread size, length, substrate, application and any critical dimensional requirements.
KYA lists T-nut options from M4 to M10 with multiple lengths and also offers custom sizes for specific woodworking and furniture projects.
KYA Fasteners has more than 20 years of experience supplying industrial fasteners and states that its T-nut products are manufactured according to international requirements.
KYA supplies customers in more than 50 countries and states that worldwide orders ship from Qingdao port within 20–30 days. Custom thread sizes, lengths and prong configurations can be discussed for bulk purchasing requirements.
It creates an M5 threaded mounting point in suitable wood or wood-based panels for furniture, climbing walls, speaker boxes, cabinets and other removable bolted assemblies.
It is made from carbon steel with a zinc-plated surface.
The featured model has four prongs around the flange to help resist rotation in the wood.
M5 identifies the metric internal thread size, while this KYA model is listed with an 8mm total length.
The current KYA product specification lists M5 but does not state the exact thread pitch. Confirm the thread pitch before ordering when matching an existing bolt, drawing or assembly.
The installation hole should match the actual barrel diameter of the T-nut. The exact barrel diameter is not listed for this model, so confirm the required hole diameter before production drilling.
Drill the correctly sized hole, insert the T-nut barrel and press or carefully drive the flange until all four prongs are seated securely in the wood.
Yes. Plywood is one of the listed applications. Confirm that the panel thickness and material quality provide sufficient engagement for the barrel and prongs.
Yes. Particle board and MDF are among the applicable wood-based materials, but panel density and thickness affect retention. Testing with the actual board is recommended before volume production.
Climbing-wall plywood panels are one of the listed applications. Confirm the required thread, dimensions, panel specification, mating bolt and applicable safety requirements for the complete climbing-wall system.
Zinc plating provides additional corrosion protection compared with bare carbon steel. For continuous outdoor exposure, high humidity, salt or other aggressive environments, confirm whether the specified zinc finish provides adequate protection.
The KYA size chart lists M5 T-nuts in 8mm, 10mm and 12mm lengths.
The listed range includes M4, M5, M6, M8 and M10 T-nuts in multiple lengths.
Yes. KYA lists custom size and prong options for specific woodworking and furniture applications.
Yes. The current product page states that free samples can be requested for product evaluation.
KYA states that it supplies customers in more than 50 countries.
KYA states that worldwide orders ship from Qingdao port within 20–30 days.
