Tappex® offer a broad range of threaded inserts for plastics to suit both mould-in and post-mould installation dependent upon the customer’s application requirements, design and their ‘in-house’ manufacturing process considerations.

Tappex - Himould


Inserts for moulding in. The Tappex HiMould range of brass inserts has been developed for plastics injection & compression moulding installation(s). Available in 3 body styles with both metric & some imperial equivalent threads.

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Tappex Products - Multisert


Thread Inserts for Cold Press, Heat or Ultrasonic Installation. The Tappex Multisert® range of brass inserts for plastics have been developed to provide a multi-purpose threaded insert for a wide variety of applications. They are available in short and regular lengths and either unheaded or headed variants; normally lengths stated in mm.

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Tappex Products - Microbarb


For pull through applications in thin section materials. The Microbarb incorporates all the standard features of the Multisert range but provides the designer and production engineer with a brass insert suitable for pull through applications in thin section materials. The performance offered by the larger diameter and head offsets the shorter barb length when compared to the equivalent Multisert.

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The Tappex brass Trisert threaded insert available in three primary designs – double ended, reduced headed and headed


High performance self-tapping brass insert. Self tapping brass insert for use in thermoplastic and thermoset plastic materials. The concept of the Tappex Trisert® design is to provide a reliable and efficient post-mould production process, where the installation torque can be controlled and monitored for increased reliability.

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Tappex Products - Trisert 3


Self-Tapping Plated Steel, Stainless Steel or Titanium Insert. The Tappex Trisert-3 has three cutting features to provide a balanced cutting action and reduced installation torque. It is suited for critical applications in hard plastics & light metal alloys and is available in two lengths, regular and long, and is based upon the Trisert Reduced Headed design.

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Tappex Products - Dedsert


Heat or Ultrasonic Installation into Thermoplastic Materials. The Dedsert® design includes two bands of helical knurling with left and right helix providing higher performance than conventional thread inserts.

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Tappex SplayMould, a mould in male, cold-formed steel fastener

Splay Mould

Male Steel Insert for a High Strength Solution. Tappex are extending the range of male inserts for moulding-in by introducing the SplayMould® male steel insert. This is in addition to machined Brass & Steel male variants of existing HiMould, Multisert & Trisert threaded inserts. Often customers expect to be able to apply standard tightening torques at the point of...

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Tappex Products - Male Inserts

Male Inserts

Brass Inserts to provide a male thread. Press fit, Self Tapping or Mould-in versions for most Plastics. Tappex offer a range of Male Inserts based upon the female equivalent, they can also be supplied with a dog point to ease location of the nut and reduce the risk of cross threading.

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Other products for Plastics

Tappex Products - Thread Forming Screws

Thread Forming Screws

Installed into drilled or moulded holes – wide variety of applications. Tappex TPX® thread forming screws are produced by cold forging from bar or wire-stock and therefore have excellent mechanical properties with minimum residual stress & high strength suitable for installation into thermoplastics.

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Tappex Products - Anti Creep

Anti-Creep Spacers / Compression Limiters

Cold press fit or Moulded-in to suit the application. Anti-creep spacers are designed to provide reinforced clearance holes for bolts to pass through a plastic moulding, and thus allow metal-to-metal clamping forces to be applied to an assembly without over-stressing the plastic.

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