Mechanical fastener

摘要

The invention relates to a mechanical fastener, comprising a substrate and a plurality of engaging stems extending from said substrate, wherein said stems are arranged in a plurality of repeating arrangements, wherein said fastener includes an x-axis and a y-axis which are mutually perpendicular to each other, wherein said plurality of repeating arrangements are ordered relative to one another along said x-axis, wherein the x-distance between adjacent of said plurality of repeating arrangement includes at least two different x-distances.