thick flat washer

1.Standard:ISO,DIN,ANSI,JIS,BS
2.Grade:4.8

3.Mark:According to customer's requirement
4.Size:M3-M52

5.Finish:Zinc plated

6.Material:Low carbon steel 
7.Delivery time:Normally in 30-40 days.
8.Quality:Top high quality.
9.Package:Cartons&pallets or according to customer's requirement.