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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED
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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 1

INSERT TECHNOLOGY FOR PLASTICS COMPOSITES AND METAL ALLOYS 50 YEARS OF FASTENER INNOVATION TAPPEX THREAD INSERTS LIMITED Masons Road, Stratford-upon-Avon, Warwickshire. CV37 9NT. Telephone: +44 (0)1789 206600, Fax: +44 (0)1789 414194. www.tappex.co.uk sales@tappex.co.uk TAPPEX PRODUCTS ARE COVERED BY U.K. AND OVERSEAS PATENTS AND DESIGN REGISTRATIONS. TAPPEX AND OTHER PRODUCT NAMES ARE REGISTERED TRADE MARKS. Tappex Brochure 2011 v06 - 10/11

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 2

50 YEARS OF INNOVATION Tappex Thread Inserts Limited was incorporated in September 1956 by its founder the late Mr. Derrick Barnsdale. From very humble beginnings in a reclaimed cow shed on Masons Road in Stratford-upon-Avon the company flourished and grew into the modern purpose built manufacturing plant it resides in today, on the original site. With 50 years’ experience in the design, development and manufacture of threaded inserts for plastics, the company, now led by his son Tim Barnsdale, is one of the UK’s most successful privately owned specialist fastener manufacturing companies,...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 3

TRISERT 5 TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED DOUBLE ENDED A self-tapping, double ended insert available in short, regular and long lengths in a range of thread sizes from M2 to M10. L P X W B C 45º HOLE DESIGN Product Features The Double Ended Trisert has a lead on both ends significantly simplifying the installation process and requiring less operator skill. The combination of the three cutting flutes and the coarse external thread form increases the radial and pull-out performance making the Double Ended Trisert ideal for use in thermoplastics where there is a...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 4

TRISERT 6 TRISERT 7 TRISERT® ADVANCED REDUCED / REGULAR HEADED Self-tapping, headed inserts available in regular and long lengths in a range of thread sizes from M2.5 to M10. INSERT DESIGN Product Features The Reduced and Regular Headed Triserts allow greater tightening torques because of their increased bearing surface, which also provide more support to softer mating components. The difference in head diameters are designed to give the optimum cost effective solution for a particular application. The larger Regular Headed versions are particularly suitable where there is a large or...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 5

TRISERT-3 9 TRISERT-3 FOR CRITICAL APPLICATIONS ® TRISERT-3 REDUCED HEADED The concept of the Trisert-3 design is to provide a reliable, strong and wear resistant thread in applications, environments and materials that would be unsuitable for brass inserts. Product Features The design combines three cutting facets with three shallow flutes offering balanced cutting and enhanced back out performance. The internal thread is not interrupted by cutting features and therefore will guarantee a free running internal thread without the risk of swarf jamming the screw. The Steel variant is case...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 6

TRISERT-3 10 TRISERT-3 11 TRISERT-3 BLIND ENDED Due to the various mechanical characteristics, a precise hole size specification is imperative. Self-tapping, reduced headed, blind ended, stainless steel inserts available in regular and long lengths in thread size M10. INSERT DESIGN øD A minimum hole depth of 1.2 x the insert length would normally be specified, with the insert installed to a maximum of 0.3mm sub flush to the surface. Stainless steel threaded fasteners generally should not be assembled using very high speed equipment, as mating surfaces will be subject to galling and may...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 7

FOAMSERT 13 DOUBLE ENDED / REDUCED HEADED INSERT DESIGN Self-tapping, double ended and reduced headed inserts available in long lengths in a range of thread sizes from M2.5 to M8. Product Features The Double Ended and Reduced Headed Foamserts share the installation benefits of the Trisert range. In addition they provide a larger external diameter, increased length and coarse truncated external thread. These additional design features make the Foamsert ideally suited for use in structural foam and other low density materials to provide increased pull-out resistance. P L X øB B C 45º HOLE...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 8

MULTISERT 15 The Tappex Multisert range of brass inserts for plastics has been developed to provide a multi-purpose insert for various environments and application criteria. It includes four primary designs: Unheaded, Single Thickness Head (single thickness head at standard and reduced diameters), Double Thickness Head (double thickness head at standard and reduced diameters) and Microbarb. See pages 14 & 15. UNHEADED The most significant feature of the Mulitisert is its barb form that makes the insert suitable for different installation methods. The designer can therefore increase pull-out...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 10

MICROBARB 19 MICROBARB MULTISERT A barbed, large headed insert available in extra short lengths in a range of thread sizes from M2 to M10. Product Features The Microbarb Multisert has been designed with a larger head and barb diameter to provide increased bearing surfaces in thin section materials. The insert can be pressed-in cold or with heat and is primarily used in a pull through mode in thermoplastics, but it can be used in thermosets with a tensile strength of less than 100Mpa and some degree of resilience. HOLE DESIGN INSERT DESIGN MICROBARB® SHORT LENGTH LARGE HEADED MULTISERT The...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 11

HiMOULD 21 HiMOULD® TYPE A TYPE B TYPE C TYPE A INSERT DESIGN The HiMould Type A is a blind-ended design of insert specifically for mouldingin available in a range of thread sizes from M3 to M6. L E min Product Features The Type A insert is designed to be installed on a plain pin in the mould tool. It has all of the advantages of the more popular Type C insert but is particularly suited for use in applications where space is restricted. The short length increases its versatility and whilst shortening the bolt engagement length still provides a similar number of full threads. øB PIN DESIGN ø...

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TRISERT® DOUBLE ENDED REDUCED HEADED REGULAR HEADED ADVANCED - 12

HiMOULD 22 HiMOULD 23 TYPE B TYPE C INSERT DESIGN plastic flashing into the insert threads, in both low and high pressure environments, whilst still allowing plain pins to be used in the mould tool. L Product Features The Type B insert provides a low cost option where a through hole in a moulding is acceptable. The Type B insert is engineered to close tolerances enabling a guaranteed flash free thread when using fixed shouldered pins in the mould tool. Also as it offers the shortest standard length for a given thread size in the HiMould range it is ideally suited for use in thin section...

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