M33 Hexagon Coupling Nuts are manufactured to DIN 6334. This page lists the controlling dimensions for the M33 size together with the drive and the installation notes for this type.
M33 Dimensional Row (DIN 6334)
| Size | Pitch (mm) | Width across flats s (mm) | Width across corners e (mm) | Length l (mm) | Reference standard |
|---|---|---|---|---|---|
| M33 | 3.5 | 50 | 55.37 | 99 | DIN 6334 |
Spanner & Drive for M33 Hexagon Coupling Nuts
Drive geometry for M33 Hexagon Coupling Nuts is given by the row above; match the tool to the listed values.
Common Applications for M33 Hexagon Coupling Nuts
M33 Hexagon Coupling Nuts are commonly specified for structural joints, flange connections and heavy equipment foundations.
Installation Tips for M33 Hexagon Coupling Nuts
- At M33 the stretch in the bolt becomes the controlling factor — for critical joints, use angle-controlled or stretch-controlled tightening instead of pure torque.
Mating Parts for M33
Pair M33 with the matching M33 bolt or screw, plus a M33 flat washer where required to distribute load on softer materials.
