and interconnect with the connecting or heel portions 82 to the respective adjoining sections of the coupling element 74 the support tape 70 is formed from a strip 90 fig5 which has a longitudinal row of transverse slits 92 formed in an intermediate section thereof the define strap portions 94 extending between opposite strip portions or halves 96 and 98 as illustrated in fig7 the coupling element 74 is assembled on one side of the strip 90 such that the head portions 80 and the leg portions 84 and 86 protrude from the slits 92 fig3 on the other side of the strip 90 and the interconnecting portions 82 extend across or under the strap portions 94 on the one side of the strip 90 then the strip is folded longitudinally along the intermediate portion to bring the opposite strip portions 96 and 98 together fig4 whereby the strap portions 94 form loops over the interconnecting portions 82 of the coupling elements the strip 90 is formed from a low cost material such as paper plastic or the like in the illustrated embodiment a synthetic polymer film material is used such as a high density polyethelene or a similar polymer with suitable flexibilty and strength the slits 92 are formed at an oblique angle to the folded edge of the tape 70 so that the leg.