When you need Spring Lock Washers in the M16 size, the controlling values come from ISO 7980 / DIN 127. This page lists them in one place — pitch, head geometry, tool size and the matching hole.
M16 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 |
|---|---|---|---|---|---|
| M16 | 16.2 | 27.4 | 9.0 | 3.5 | ISO 7980 / DIN 127 |
Spanner & Drive for M16 Spring Lock Washers
Drive geometry for M16 Spring Lock Washers is given by the row above; match the tool to the listed values.
Common Applications for M16 Spring Lock Washers
M16 Spring Lock Washers are commonly specified for medium-duty structural joints.
Mating Parts for M16
A M16 flat washer pairs with a M16 bolt/screw and matching M16 nut.
When to Step Up or Down from M16
When the joint preload approaches the proof load of M16 class 8.8, step up to M20 class 8.8 (or move to M16 class 10.9). When the joint is over-specified, M12 often saves weight and cost without losing the safety margin.