Disc Spring,Metric Disc Spring,High Carbon Steel,Finish Phosphate,Min. Inside Dia. 25.5mm,Max. Outside Dia. 39.6mm,Thickness 0.50mm,Overall Height 1.3mm,Load @ Deflection (Lbs.) 111N,Deflection @ Load 0.60mm,Meets/Exceeds GB/T 1222-2007, ASTM-A684,Package Quantity 10