spring washer

4)Packing:In carton/sack and palletized,Generally 25kg per unit or packing according to customers' requirements.

3)surface treatment:Polishingblack, zinc plated (blue, white, yellow), hot dipped galvanized..Phosphating

2)Material70# , 65Mn,ss302,ss304,ss316,copper

JIS B 1251       3-36mm

BS1802  1/8-11/2

 No411/2

ASME B18.21.1

DIN137B 3-24mm

DIN6798 1.6-30mm

DIN6797 1.6-30mm

DIN6796 2-30mm

DIN7980 3-48mm

DIN127B 2-64mm

1)Standard   Size