Washer M20

Washer M20 is designed for use together with bolts and screws whose thread size per GOST is M20.

The presence of a washer ensures higher reliability of the mechanical connection, preventing it from loosening under vibration and dynamically changing loads.

Washer types

Washer M20 GOST is made of steel with a hardness of 140…200 HV. The following types are available:

1. Flat washer GOST — used to reduce the load on the part being secured by a bolt or screw. The inner hole diameter is 21 mm, the outer diameter is from 36.38 to 37 mm.
2. Spring lock washer M20 GOST (grover) — used for reliable fixation of mechanical connections operating under vibration and dynamic loads. The outer diameter of the M20 grover is 33.6 mm.