Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 212.0mm Max Outside Dia 318.0mm Thickness 3.00mm Overall Height 6.2mm Load @ Deflection (Lbs.) 1300N Deflection @ Load 2.40mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10