M30 Turnbuckle (ISO / DIN) are specified by thread size, length and head dimensions. The M30 row from the standard is reproduced below, followed by the drill sizes, spanner size and torque values used when installing this size.
M30 Dimensional Row (ISO / DIN)
| Thread size | Total length closed (mm) | Take-up length (mm) | Working load limit (kg) | Material | Reference standard |
|---|---|---|---|---|---|
| M30 | 420 | 320 | 3200 | Drop-forged steel, hot-dip galvanized | DIN 1480 / GB/T 5973 |
Spanner & Drive for M30 Turnbuckle — ISO / DIN (Series 156)
Drive geometry for M30 Turnbuckle — ISO / DIN (Series 156) is given by the row above; match the tool to the listed values.
Common Applications for M30 Turnbuckle — ISO / DIN (Series 156)
M30 Turnbuckle — ISO / DIN (Series 156) are commonly specified for general engineering applications.
Installation Tips for M30 Turnbuckle — ISO / DIN (Series 156)
- At M30 the stretch in the bolt becomes the controlling factor — for critical joints, use angle-controlled or stretch-controlled tightening instead of pure torque.