Countersunk Head Screw Riello Blast Tube M4 12Mm

Plain Stainless Steel - Can Be Used To Attach Ecoflam/Simel Motor Flange

The Countersunk Head Screw M4 x 12mm is a genuine Riello fixing screw used to secure the blast tube and burner components in Riello oil burners. Precision-engineered to OEM standards, this screw ensures a tight, flush fit that maintains structural integrity and alignment within the combustion head assembly. Manufactured from high-strength, heat-resistant steel, it provides durability and corrosion resistance under high-temperature operating conditions, ensuring long-term reliability in domestic and commercial burner systems.

Key Features

• Genuine Riello Countersunk Head Screw – M4 x 12mm

• Used for securing Riello blast tubes and combustion heads

• Precision-machined threads for secure, vibration-resistant fitting

• Countersunk design allows for a flush installation

• Manufactured from high-grade, heat-resistant steel

• Provides secure alignment and stability during burner operation

• Direct OEM replacement for Riello burner assemblies

• Suitable for domestic and light commercial oil-fired systems

Compatibility

• Designed for use with Riello RDB, R40, and Mectron burner ranges

• Fits Riello blast tubes and combustion head assemblies

• Commonly used in boilers from Grant, Firebird, Warmflow, Worcester, and Trianco

When to Replace

• If the existing screw is stripped, corroded, or damaged

• During burner disassembly or reinstallation

• To ensure secure fixing and correct component alignment

Technical Specifications

• Manufacturer: Riello

• Part Type: Countersunk head screw

• Thread Size: M4

• Length: 12mm

• Material: Heat-resistant steel

• Application: Securing blast tube and combustion components