RS PRO A2 304 Stainless Steel Internal Tooth Shakeproof Washer, M20, DIN 6797J

RS PRO Plain Stainless Steel Internal Tooth Shakeproof Washer, M20, A2 304

Need a reliable way to keep your fixings held firmly in place? Turn to these shakeproof washers from RS PRO. They're resistant to frequent shocks and jolts, so they're a good choice for use in heavy-duty industrial applications.


The washers lock into place around a bolthead or nut with their internal teeth. They provide a tight grip that prevents the fasteners from coming loose, so they hold tight even during heavy use. This reduces equipment maintenance as there's no need to worry about tightening or replacing components.


By keeping bolts and fixings secured, these shakeproof washers increase workplace safety by helping to prevent accidents and damage. These washers are commonly used in situations where vibrations and regular forceful movements are common, such as the transport industry and industrial machinery.

Features and Benefits

• Plain finish


• Stainless steel material


• M20 screw/bolt size


• Inside diameter of 21 mm


• Outside diameter of 33 mm


• A2 304 stainless steel type


• Thickness of 1.4 mm


• Internal tooth washer type

RS Pro Datasheet

Fasteners Selection Guide 56 Pages