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Round spring steel wire is used for making watch parts, loupe springs and many other items requiring spring steel. Comes tempered and ready for use in 36" coil. B&S wire gauge sizes. Choose from 16 gauges: Part No. Gauge 143.731 31 gauge 0.0089" (0.227mm) Thinnest 143.730 30 gauge 0.0100" (0.255mm) 143.729 29 gauge 0.0113" (0.286mm) 143.728 28 gauge 0.0125" (0.321mm) 143.727 27 gauge 0.0142" (0.361mm) 143.726 26 gauge 0.0159" (0.405mm) 143.725 25 gauge 0.0179" (0.455mm) 143.724 24 gauge 0.0201" (0.511mm) 143.722 22 gauge 0.0253" (0.644mm) 143.721 21 gauge 0.0285" (0.723mm) 143.720 20 gauge 0.0320" (0.812mm) 143.719 19 gauge 0.0359" (0.912mm) 143.718 18 gauge 0.0403" (1.024mm) 143.717 17 gauge 0.0453" (1.150mm) 143.716 16 gauge 0.0508" (1.291mm) 143.715 15 gauge 0.0571" (1.450mm) Thickest
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🇺🇸 Ship from USA · On Agora since 2025
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