fastener

fastener
/ˈfɑ:snə(r); ?@ ˈfs-; `fæsənɚ/, fastening / ˈfɑ:snɪŋ; uS ˈfs-; `fæsənɪŋ/ ns
device that fastens sth 将某物固著的装置: a zip fastener 拉链.

牛津英汉双解词典