| 摘要 |
A wire thread insert ( 1 ) for forming a helical thread, comprising a wire ( 7 ) wound into a closed coil having an outer surface ( 9 ) and an inner surface ( 11 ), wherein the wire ( 7 ) has a first portion ( 13 ) defining the inner surface of the thread insert when coiled, said first portion having a cross-section at least substantially in the form of a standard thread, the wire having an opposing second portion ( 15 ) defining the outer surface of the thread insert and having a cross-section in the form of a tapered flange with at least one concave face ( 23 ).
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