The M12 size of Turnbuckle is dimensioned by ISO / DIN. The tables below give the dimensional row from the standard, the drill and spanner sizes that go with it, and the assembly torque per property class. The technical drawing on this page redraws to the exact values selected.
M12 Dimensional Row (ISO / DIN)
| Thread size | Total length closed (mm) | Take-up length (mm) | Working load limit (kg) | Material | Reference standard |
|---|---|---|---|---|---|
| M12 | 180 | 135 | 340 | Drop-forged steel, hot-dip galvanized | DIN 1480 / GB/T 5973 |
Spanner & Drive for M12 Turnbuckle — ISO / DIN (Series 156)
Drive geometry for M12 Turnbuckle — ISO / DIN (Series 156) is given by the row above; match the tool to the listed values.
Common Applications for M12 Turnbuckle — ISO / DIN (Series 156)
M12 Turnbuckle — ISO / DIN (Series 156) are commonly specified for general engineering applications.
When to Step Up or Down from M12
When the joint preload approaches the proof load of M12 class 8.8, step up to M16 class 8.8 (or move to M12 class 10.9). When the joint is over-specified, M10 often saves weight and cost without losing the safety margin.