Last year ITW introduced a plastic fastener that it calls the BosScrew.

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In addition to being durable and IPX-4-rated splash-proof, BoostSolar also features fastener holes that enable it to be easily attached to a backpack for maximum portability and to charge while you're on the go.

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It's a far cry from the time when soldiers were instructed to say "slide fastener" in order to avoid using "zipper, " a trademark.

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