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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

California Prop 65 Warning:
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.

Round Spring Steel Wire 36" Coils-15 Gauge to 31 Gauge

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Round Spring Steel Wire 36" Coils-15 Gauge to 31 Gauge

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