Music Wire Stainless Steel 302 Round 223 ft Overall Length Package Type Dispenser Box Coil Weight 1 lb Package Weight 1 lb Feet Per Pound 223 ft/lb Heat Treatment Full Hard Spring Tempered Tensile Strength 275 000 psi Application Armature Binding Ceramic Cutting Control Linkages Springs Wire Forms Includes Material Certificate Yes Gauge 18 ga Standards AMS 5688 ASTM A313 ASTM A555 ASTM A580 System of Measurement Inch 0.041 in Thickness Thickness Tolerance +/-0.0008 in