Disc Spring Metric Disc Spring High Carbon Steel Finish Phosphate Min Inside Dia 50.5mm Max Outside Dia 67.5mm Thickness 0.70mm Overall Height 1.7mm Load @ Deflection (Lbs.) 160N Deflection @ Load 0.75mm Meets/Exceeds GB/T 1222-2007 ASTM-A684 Package Quantity 10