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Home / Office Equipment, Supplies & Services / HU Nozzle, High Hardness and Wear-Resistant Hardened Steel Nozzle, Extruder Head, Suitable for Fiber-Reinforced Filaments

Attributes

Brand -
Category Root / Office Equipment, Supplies & Services
Origin -
Material Hardened Steel
Compatibility Fiber-Reinforced Filaments (Carbon, Glass, Kevlar)
Nozzle Diameter 0.4 mm
Thread Type M6
Heat Resistance Up to 300°C
Surface Finish Polished Internal Bore
Durability Rating 10x Standard Brass Nozzles
Package Contents 1x HU Nozzle, 1x Installation Wrench
Weight 8 grams
Country of Origin Germany

6 reviews

A

Anonymous

Mar 22, 2026

Rating: 4/5

Durable but requires higher temps

Great quality nozzle that handles abrasive filaments well. Note that you might need to increase your printing temperature slightly compared to brass nozzles due to different thermal conductivity.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Long lasting investment

Initially hesitant about the price, but considering I used to replace brass nozzles every few spools of abrasive filament, this pays for itself quickly. Highly recommended.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Essential upgrade for engineering materials

If you are printing with glass-filled nylon or similar tough materials, this is a must-have. It prevents the nozzle orifice from widening over time, ensuring consistent print quality.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Solid build quality

The machining on this nozzle is precise. Fits my E3D V6 hotend perfectly without any leaks. Only giving 4 stars because shipping took a bit longer than expected.

A

Anonymous

Mar 09, 2026

Rating: 5/5

No more clogs!

Since installing this HU nozzle, my clogging issues with composite filaments have disappeared. The internal bore seems very smooth and resistant to material buildup.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for Carbon Fiber Prints

I switched from a brass nozzle to this hardened steel one specifically for printing with carbon fiber PLA. The difference in wear resistance is night and day. After 500 grams of filament, the nozzle still looks brand new.

5 FAQ

Q: Does the package include a gasket or seal?

A: The nozzle is designed to create a metal-to-metal seal when properly tightened against the heat block. A separate gasket is not required or included.

Q: Is this nozzle compatible with the Prusa MK3S extruder?

A: Yes, this nozzle features a standard M6 thread and is compatible with the Prusa MK3S and most other hotends using M6 nozzles.

Q: How does the hardness compare to a standard brass nozzle?

A: Our hardened steel nozzles are significantly harder than brass, offering approximately 10 times the wear resistance when printing with abrasive composite materials.

Q: What is the maximum operating temperature?

A: This hardened steel nozzle is rated for continuous operation up to 300°C, making it suitable for high-temperature engineering polymers.

Q: Can I use this with standard PLA filament?

A: Absolutely. While designed for abrasive filaments, it works perfectly fine with standard PLA, ABS, and PETG. You may just notice slightly slower heat transfer compared to brass.

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