| 摘要 |
A plastic fastener comprises an insertion leg of the general shape of the letter V, a pair of flange pieces disposed at the free ends of the insertion leg, and a pair of head pieces extended upwardly from the respective flange pieces. This fastener assumes its complete state by causing the head pieces to be twisted sidewise and moved past each other and subsequently allowing the rear edges of the head pieces to abut against each other. Two plates can be attached fast to each other simply by inserting the combined head portion of the fastener into the perforation formed in advance in one of the two plates and forcing the insertion leg into the perforation formed in advance in the other plate. Desired separation of the insertion leg from the latter plate is accomplished by moving the rear edges of the head pieces apart from each other.
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