内齿锁紧垫圈
/ɪntˈɜːnəl ˈtuːθ ˈlɒk ˈwɒʃə/
n
English: internal tooth lock washer · 内齿锁紧垫圈
English · internal tooth lock washerEspañol · arandela de presión de dientes internosFrançais · rondelle à denture intérieure
释义：Washer having protuberances on the inside so that a screw tightens securely and will not loosen.