Slotted Countersunk Head Screw GB68C-76 M6x26mm for Steam Turbine Assemblies

The Steam Turbine Screw GB68C-76 M6x26mm is a high-standard fastener specifically engineered for the connection of steam turbines and their associated precision mechanical equipment.

1. Design and Functional Advantages

This screw features a countersunk head design, typically with a 90-degree taper. The core advantage of this geometry is that the head sits flush with or below the surface of the component within a countersunk hole.

In the compact internal environment of a steam turbine—where component clearances are extremely tight—this flush-fitting characteristic is vital. It prevents interference or collisions between rotating parts and protruding fasteners, thereby eliminating significant operational safety hazards.

2. Material and Manufacturing Standards

Given that steam turbines operate under prolonged conditions of high temperature, high pressure, and intense vibration, these screws are generally manufactured from high-strength alloy steel or premium stainless steel. Key performance attributes include:

• Mechanical Strength: High tensile and shear resistance to maintain clamping force.

• Fatigue Resistance: Ability to withstand cyclic loading and alternating stresses.

• Thermal Stability: Excellent resistance to high-temperature oxidation and creep.

To ensure long-term reliability, these fasteners may be paired with locking washers or treated with specialized thread-locking coatings to prevent self-loosening due to vibration.

3. Quality Assurance

As a standard part in turbine maintenance and assembly, the quality of the GB68C-76 M6x26mm screw directly impacts assembly precision and sealing integrity. Every unit undergoes rigorous dimensional tolerance inspections and mechanical testing to ensure dependable performance under extreme stress.

4. Steam Turbine Fastener Specifications Table

The following table summarizes common high-strength bolts, nuts, and screws utilized in steam turbine maintenance and assembly:

HKZX-2026-01-28