All music wire springs are Zinc Plated in accordance with ASTM B633 and baked for hydrogen embrittlement relief. The Stainless Steel 302 and 316 springs are passivated providing superior corrosion resistance. Music Wire Instrument Compression. Material is ASTM A228 Zinc Plated Music Wire with squared ends to within 3 degrees, not ground. Generally used in lighter duty precision applications.
Stainless Steel 302 Extension Spring, 0.313 OD x 0.049″ Wire Size x 1″ Free Length
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