Nyloc self locking nuts require 1.939 MT of specified steel input per MT exported and matching input forms.

SION for Nyloc self locking nuts (C739) requires EN/AISI/DIN/JIS series steel in wire/wire rod/HEX bar form (coils or straight length) as input and prescribes an input-output ratio of 1.939 MT of such steel per 1 MT of export product; the wire must have diameter greater than the exported end product and applicants must ensure imported goods match the goods actually used in manufacture. The SION entry is recorded as suspended in the cited public notice.

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