M6 Turnbuckle are manufactured to ISO / DIN with a coarse thread pitch of 1 mm. This page lists the controlling dimensions for the M6 size — head geometry, width across flats, matching spanner size — together with the clearance hole, tapping drill and tightening torque used at assembly.
M6 Dimensional Row (ISO / DIN)
| Thread size | Total length closed (mm) | Take-up length (mm) | Working load limit (kg) | Material | Reference standard |
|---|---|---|---|---|---|
| M6 | 105 | 75 | 80 | Drop-forged steel, hot-dip galvanized | DIN 1480 / GB/T 5973 |
Spanner & Drive for M6 Turnbuckle — ISO / DIN (Series 156)
Drive geometry for M6 Turnbuckle — ISO / DIN (Series 156) is given by the row above; match the tool to the listed values.
Common Applications for M6 Turnbuckle — ISO / DIN (Series 156)
M6 Turnbuckle — ISO / DIN (Series 156) are commonly specified for general engineering applications.
When to Step Up or Down from M6
When the joint preload approaches the proof load of M6 class 8.8, step up to M8 class 8.8 (or move to M6 class 10.9). When the joint is over-specified, M5 often saves weight and cost without losing the safety margin.