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Ten-point guide to choosing threaded inserts for plastics

19 June 2006

Design engineers who use plastics face increasing problems when trying to specify high performance inserts that will give reliable cost-effective assemblies. Tappex Thread Inserts have been designing and manufacturing threaded inserts for over 40 years and offer a wide range of Triserts, Multiserts and HiMoulds for plastics, plus low-cost FlexiArm and Heat Insertion installation equipment. Based on this extensive experience the company have published a guide that examines 10 key points to consider when choosing the optimum threaded insert for any particular plastic application.

Among the topics covered in the guide are:

[1] Fully understanding the intended use of the insert and the mechanical
performance specification it is expected to meet.

[2] The importance of having a good working knowledge of the proposed production
process and the type of plastic to be used.

[3] Advantages of choosing an insert from a manufacturer’s standard range.

[4] The importance of evaluating the true ‘in-place’ cost of the insert.

[5] Deciding the method of installation.

[6] Choice of the material from which the insert is made.

[7] Methods of installing post-mould inserts.

[8] Care in the design of fixtures and in the handling of the moulding.

[9] Low cost installation equipment.

[10]Quality control.

The guide is freely available from Tappex Thread Inserts Ltd

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