... ,10.9 Product Details:1.Category: flat washer; spring washer; high pressure washer; square washer; bowl washer; F436M washer; loading washer; tab washer and etc.2.Specification: all kinds ... ,JIS,ANSI/ASMEUse:It is Widely used in aerospace, energy, electrical appliances, electronics, machinery, chemicals, metallurgy, automobile and other industries bolts ...