production of the peek monofilament will make it possible to obtain the benefit of peek monofilament with even smaller diameters the use of peek material as coil material and joining wires should prove superior on papermaking machines the peek monofilament has substantially better abrasion resistance and hydrolytic chemical deterioration resistance not available with prior art seaming monofilaments since paper machines have inherent risk of heat and chemical attack the peek monofilament will improve the life cycle of the fabric seam with reference to fig2 there is shown peek monofilament which has been developed into joining wires for use with the coil in making the fabric seam it will be appreciated by those skilled in the art that the technique s for producing such as a joining wire whether it be a single fig2 a or double fig2 b joining wire is known to those skilled in the art and that the technique does not form part of the instant invention the end uses for these new joining wires fit well into the chemical and abrasion resistance necessary in modern papermaking equipment the shear forces generated in the seams which are perpendicular to the longitudinal axis appear to have no adverse effects.