A
Anonymous
Apr 18, 2026
Rating: 5/5
Fast Shipping
Arrived quickly and exactly as described. Will buy again.
Description
Pure copper, oil-free, high precision
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | H62 Brass / Pure Copper |
| Surface Finish | Polished |
| Thread Standard | Metric |
| Available Sizes | M2, M3, M4, M5, M6, M7, M8 |
| Inner Diameter Tolerance | ±0.05mm |
| Outer Diameter Tolerance | ±0.05mm |
| Length Options | 5mm, 10mm, 15mm, 20mm, 30mm, 50mm |
| Hardness | HV80-120 |
| Package Quantity | 50 Pieces per Pack |
| Application | Electronics, Machinery, DIY Projects |
5 reviews
A
Anonymous
Apr 04, 2026
Rating: 3/5
Packaging Could Be Better
Product is fine but they were loose in the bag. Some got dented.
A
Anonymous
Feb 28, 2026
Rating: 5/5
Great for Electronics
Using these for grounding spacers. Conductivity is excellent.
A
Anonymous
Feb 24, 2026
Rating: 5/5
Perfect Fit
These bushings fit my M4 screws perfectly. Great quality copper.
A
Anonymous
Feb 06, 2026
Rating: 4/5
Good Value
Solid material but one piece had a slight scratch. Overall happy.
5 FAQ
Q: Do you offer bulk discounts?
A: Please contact our sales team directly for bulk order pricing.
Q: Can I use these for electrical grounding?
A: Yes, copper provides excellent conductivity for grounding applications.
Q: Is the inner surface threaded?
A: No, these are smooth hollow tubes intended for spacers or sleeves.
Q: Are these solid copper or plated?
A: These are made from solid H62 brass alloy copper.
Q: What is the maximum temperature rating?
A: Suitable for standard operating temperatures up to 200°C.
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