Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material	Pure Copper & Brass
Thread Standard	Metric (ISO)
Available Sizes	M2, M3, M4, M5, M6, M7, M8
Surface Treatment	Polished
Shape	Hollow Cylinder / Sleeve
Function	Isolation Spacer / Bushing
Electrical Property	Conductive
Package Type	Assorted Kit
Weight	0.5 kg
Country of Origin	China

5 reviews

Anonymous

Mar 21, 2026

Rating: 5/5

Solid Build

Brass tubes are sturdy and machined well. No sharp edges.

Anonymous

Mar 14, 2026

Rating: 5/5

Excellent Conductivity

Used these for grounding projects and they work perfectly. Good quality copper.

Anonymous

Mar 06, 2026

Rating: 5/5

Perfect for DIY

Great for my robotics project. Easy to solder and install.

Anonymous

Feb 21, 2026

Rating: 4/5

Good Variety

Most sizes fit well. Would have liked more M6 pieces in the kit.

Anonymous

Jan 29, 2026

Rating: 3/5

Packaging Could Be Better

Parts were loose in the bag, but the product itself is fine.

5 FAQ

Q: Are these insulated?

A: No, copper is conductive. Please use appropriate insulation for your application.

Q: Is M7 common?

A: M7 is less standard than M6 or M8, but included in this kit.

Q: Will these rust?

A: Copper oxidizes over time but resists rust like iron. Brass is also corrosion resistant.

Q: Can I cut them to length?

A: Yes, you can cut them using a hacksaw or tube cutter.

Q: Do you offer bulk discounts?

A: Please contact our sales team for bulk pricing inquiries.

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