hread Inserts Ltd Newton Aycliffe County Durham Homepage Tappex Threaded Inserts for plastics, woods, metal alloys & composites Threaded Inserts for ...hread Inserts for Plastics HiMould Multisert Microbarb Trisert Trisert-3 Dedsert Splay Mould Male Inserts MultiPip Thread Inserts for Light Metal Allo