M33x2 thread – characteristics and application

The M33x2 thread is a precise metric thread with a nominal diameter of 33 mm and a pitch of 2 mm, used mainly in power hydraulics, pneumatics, and machine construction. The „M” designation informs that it is a metric thread with a triangular profile, while the value „2” indicates the distance between the turns, i.e. the so-called thread pitch. In practice, threads with a larger pitch, such as M33x2, are used where quick connection and disconnection of elements are needed while maintaining high mechanical strength.

Features of the M33x2 thread

The M33x2 thread is characterized by a precise fit and high resistance to axial and radial loads. It is commonly used in fasteners such as couplings, nipples, sleeves, and hydraulic adapters, where tightness and high resistance to operating pressure – often exceeding 400 bar – are required. Thanks to the 2 mm pitch, this thread ensures the durability of the connection even under intensive use.

Application of the M33x2 thread

M33x2 threads are found in both fittings with an external thread and in connectors with an internal thread. They are encountered in systems:

• power hydraulics (e.g. high-pressure hoses, directional control valves, actuators),

• pneumatic (hoses and fittings with high flow),

• industrial (technological installations, presses, construction machinery).

Hydron's offer includes components with M33x2 threads in many configurations — including couplings, elbows, tees, reduction sleeves or adapter fittings. These elements are made of high-grade steel and often protected with an anti-corrosion coating, which ensures a long service life even in difficult working conditions.

Technical parameters of the M33x2 thread:

• Nominal diameter: 33 mm

• Pitch: 2 mm

• Thread type: metric, standardized (ISO)

• Example range of outer diameter: 32,6 – 32,9 mm

• Example range of inner diameter: 30,6 – 31,0 mm

• Standard: PN-ISO 724 / DIN 13

Summary

The M33x2 thread is a solid solution used in systems requiring high durability and tightness. Thanks to its universality and exact tolerances, it is widely used in professional hydraulic systems. All elements with the M33x2 thread are available in the shop Hydron – a company with 20-year experience in the power hydraulics industry.