Ferrules have precision-drilled IDs so there are no mold imperfections.4mm ID ferrules fit 0.8mm ID ferrules fit 0. 1/16'', 1/8" & 1/4" PTFE Ferrules - PTFE ferrules have an upper temperature limit of 250° C.
Its ability to carry high loads over a broad temperature range makes it good for structural components such as linkages and seal rings. It also provides electrical insulation and exceptional impact strength..