M8 x 25mm Metal Type D Nuts | Zinc

The M8 x 25mm Type D Flanged Insert Nut is a heavy-duty self-tapping threaded insert designed to create a permanent, high-strength M8 machine thread in timber, MDF, plywood, chipboard and other engineered wood materials. Manufactured from durable zinc alloy die-cast, this longer 25mm insert provides increased engagement within the base material, making it ideal for applications requiring enhanced holding strength and long-term reliability.

The coarse self-tapping external thread cuts securely into the substrate during installation, creating a strong mechanical fixing without the need for adhesives. Its integral flange prevents the insert from being driven too deeply into the material while helping to protect decorative and laminated surfaces from splitting or damage.

Perfect for furniture manufacturing, commercial joinery and industrial woodworking, the M8 x 25mm Type D insert nut delivers excellent resistance to pull-out, vibration and torsional forces, making it a dependable solution for demanding fixing applications.

Key Features & Benefits

• Manufactured from premium zinc alloy die-cast
• M8 metric internal thread
• 25mm insert length for increased holding power
• Self-tapping external thread for quick installation
• Integral flange prevents over-insertion
• Excellent pull-out resistance in timber and sheet materials
• High resistance to vibration and rotational forces
• Creates a durable, reusable metal thread
• Suitable for repeated assembly and maintenance
• No adhesive required
• Ideal for heavy-duty furniture and woodworking applications

Technical Specification

• Thread Size: M8
• Insert Length: 25mm
• Material: Zinc Alloy Die Cast
• Finish: Zinc
• Style: Type D
• Head Type: Flanged
• Suitable Materials: Solid Timber, MDF, Chipboard, Particleboard, Plywood, Hardwood, Softwood

Typical Applications

The longer M8 x 25mm Type D insert nut is particularly suited to applications where additional thread engagement and increased pull-out resistance are required.

Typical applications include:

• Heavy-duty furniture manufacturing
• Cabinet and wardrobe construction
• Workbenches and timber frames
• Office furniture
• Shopfitting and retail displays
• Audio equipment and speaker enclosures
• Exhibition stands
• Storage systems
• Commercial joinery
• Industrial timber fixtures
• Educational furniture
• Repair and refurbishment projects

Why Choose M8 x 25mm Type D Flanged Insert Nuts?

Where greater fixing strength is needed, the 25mm body length offers increased contact with the surrounding material compared to shorter inserts. This provides improved load distribution and enhanced resistance to pull-out, making it ideal for thicker timber sections and applications subjected to repeated loading or vibration.

The self-tapping design enables fast installation while eliminating the need for adhesives, and the integrated flange ensures consistent installation depth while protecting finished surfaces. Once installed, the insert creates a permanent M8 machine thread capable of withstanding repeated assembly and disassembly without damaging the timber.

Available Sizes

Our range of flanged insert nuts are available in additional thread sizes and lengths to suit different timber thicknesses and application requirements. If you require a size or specification not shown online, please contact our technical sales team for availability.

   Why not submit your own review?

Submitted by David Coleman (22/08/2018)
Sent as a free sample - ideal for deciding if product is suitable for my needs. Excellent communication from seller.

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

Submitted by David Coleman (22/08/2018)
Sent as a free sample - ideal for deciding if product is suitable for my needs. Excellent communication from seller.

Quality
Accurate Description
Performance/Suitability
Value for money
Overall Score	5.0 / 5

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• Technical Drawing