Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | T2 Red Copper |
| Thread Standard | Metric Coarse (ISO) |
| Size Range | M3, M4, M5, M6, M8, M10, M12, M16 |
| Surface Finish | Polished |
| Head Type | Hexagon Head |
| Package Contents | Bolts, Nuts, Flat Washers |
| Total Piece Count | 120 Pieces |
| Electrical Conductivity | ≥98% IACS |
| Storage Case | Plastic Organizer Box Included |
| Country of Origin | China |
Anonymous
Apr 16, 2026
Rating: 5/5
Nice organizer box
The plastic box keeps everything sorted by size. It saves a lot of time when I need a specific M6 or M8 bolt quickly.
Anonymous
Apr 01, 2026
Rating: 5/5
Perfect conductivity
Tested with a multimeter compared to steel bolts. The resistance is significantly lower. Great for battery connections in my solar setup.
Anonymous
Mar 16, 2026
Rating: 5/5
Fast shipping and well protected
Arrived quickly and nothing was tarnished. The packaging prevented the copper from scratching during transit. Will buy again.
Anonymous
Mar 03, 2026
Rating: 5/5
Excellent for grounding projects
Used these for a ham radio grounding setup. The conductivity is great and the variety of sizes meant I had the right fit for every terminal.
Anonymous
Feb 02, 2026
Rating: 4/5
Good value assortment
Overall very happy with the set. The copper is soft as expected, so be careful not to overtighten. One nut was slightly stripped but the rest were perfect.
Q: Are these bolts solid copper or plated?
A: These are made from solid T2 red copper, not plated steel.
Q: Do you carry M20 sizes in this series?
A: Currently, this set ranges from M3 to M16. We do not stock M20 in this specific kit.
Q: What wrench size is needed for the M8 bolts?
A: A standard 13mm wrench or socket is required for the M8 hex head bolts.
Q: Are the washers flat or spring washers?
A: This set includes flat washers. Spring washers are not included in this package.
Q: Will these corrode if used outdoors?
A: Copper oxidizes over time which forms a patina. For outdoor use, we recommend applying a protective coating.
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