M2 Spring Lock Washers are manufactured to ISO 7980 / DIN 127 with a coarse thread pitch of the standard value. This page lists the controlling dimensions for the M2 size — head geometry, width across flats, matching spanner size — together with the clearance hole, tapping drill and tightening torque used at assembly.
M2 Dimensional Row (ISO 7980 / DIN 127)
| For bolt size | Inner diameter d1 min (mm) | Outer diameter d2 max (mm) | Width b (mm) | Thickness s (mm) | Reference standard |
|---|---|---|---|---|---|
| M2 | 2.1 | 4.4 | 1.6 | 0.5 | ISO 7980 / DIN 127 |
Spanner & Drive for M2 Spring Lock Washers
Drive geometry for M2 Spring Lock Washers is given by the row above; match the tool to the listed values.
Common Applications for M2 Spring Lock Washers
M2 Spring Lock Washers are commonly specified for small electronics hardware and precision assemblies.
Installation Tips for M2 Spring Lock Washers
- At M2 the joint is sensitive to over-torque — use a torque-limiting driver and check the head doesn't bury into a softer counterpart.
Mating Parts for M2
A M2 flat washer pairs with a M2 bolt/screw and matching M2 nut.