Woodfit - Headed - Type B - M8 x 23mm

Our Woodfit Headed Type B Threaded Inserts provide strong, permanent, and reusable metal threads in timber and wood-based sheet materials. Often referred to as knock-in insert nuts, these high-performance fittings are ideal for furniture manufacture, cabinetry, joinery, and general woodworking applications where a secure, professional fixing is required.
Manufactured from high-quality zinc alloy die cast with a durable yellow passivated finish, these inserts offer outstanding corrosion resistance and wear durability. They also feature a unique barbed external design that provides excellent resistance to pull-out, vibration, and torsional loads.

The headed (flanged) design spreads load evenly across the surface, preventing splitting or pull-through. If your project requires a flush finish with the timber surface, why not shop our Type A Threaded Inserts — ideal for applications where a smooth, concealed appearance is desired. Shop Type A Unheaded Woodfit inserts here.

Suitable for hardwoods, softwoods, MDF, chipboard, and plywood, Woodfit Type B inserts create strong, reusable internal threads for long-lasting, professional-grade fixings. Choose Woodfit Headed Type B Threaded Inserts for an easy-to-install, durable, and reliable fastening solution across all woodworking and furniture projects.

Please note: While the majority of our Woodfit inserts are supplied with a yellow passivated finish, on occasion, stock may be finished in bright zinc (BZP). This does not affect the product’s performance or quality.