Onye nrụpụta igwe anaghị agba nchara Flat Washer ụlọ ọrụ

Gịnị bụ flat washers maka?gbochie imikpu nke ebu n'elu, Isi ọrụ nkeewepụghị washersbụ ịbawanye nha nke ebe a na-ebugharị skru, ma belata nrụgide elu nke etinyere na ihe akpọchiri.