Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 161.0mm Max Outside Dia 238.0mm Thickness 2.20mm Overall Height 5.2mm Load @ Deflection (Lbs.) 1020N Deflection @ Load 2.25mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10