25.94.12 - Non-threaded fasteners, of iron or steel, n.e.c.
22.214.171.124 - Iron or steel spring washers and other lock washers
126.96.36.199 - Iron or steel washers (excluding spring washers and other lock washers)
188.8.131.52 - Iron or steel rivets (including partly hollow rivets) (excluding tubular or bifurcated rivets for all purposes)
184.108.40.206 - Iron or steel cotters and cotter-pins and similar non-threaded articles (excluding washers, rivets)
Non-threaded fasteners, of iron or steel, n.e.c.
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