Stainless Steel Washers
A2 (304), A4 (316), Stainless Steel Washers
Stainless steel washers, Flat washer and spring washer, Grade A2 or A4, DIN125A, DIN9021/ ISO 7093, DIN127/DIN128
Types of Stainless Steel Washers
DIN125 flat washer, hardness: 140HV, 140-250HV, 200HV,200-250HV, Grade A2 A4, F1,C1 and C4. Size from M3 to m36. Flat washers and bolts or screws with hexagon nuts for fastening. or it may be stuck in the head and neck of a bolt or screw as combination screw during production. called screw kits.
DIN 9021 big flat washers, same as standard ISO 7093-1, Hardness according to DIN267-11, 140HV,140-250HV. to increase the contact area, increase friction and prevent loosening. Grade A2 and A4.
DIN127B spring washers, the spring lock washer with square ends Type B. made in ss304 and ss316. work together with flat washer, hexagon nut and bolts or screws. strong rebound force prevents bolts from loosening.
DIN 439 square washers made by ss304 and ss316,because the thickness is slightly thicker, more tightening force can be applied.