Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | Carbon Steel |
| Standard | GB/T 5782 |
| Performance Grade | 8.8 |
| Surface Treatment | Hot-Dip Galvanized |
| Head Type | Hexagonal Head |
| Thread Type | Metric Coarse |
| Kit Includes | Bolts, Nuts, Flat Washers, Spring Washers |
| Primary Application | Solar PV Mounting & Power Infrastructure |
| Corrosion Resistance | Suitable for Outdoor Environments |
| Packaging | Protective Cardboard Box |
Anonymous
Apr 12, 2026
Rating: 5/5
Heavy Duty
Grade 8.8 strength is exactly what we needed for our power infrastructure project. Very satisfied with the tensile strength.
Anonymous
Mar 30, 2026
Rating: 5/5
Complete Set
Really appreciate having the flat and spring washers included. Saved me a trip to the hardware store and ensured compatibility.
Anonymous
Feb 20, 2026
Rating: 4/5
Good Quality Fasteners
Solid bolts. Threads were clean and nuts tightened smoothly. One washer was slightly bent but did not affect usage.
Anonymous
Feb 17, 2026
Rating: 4/5
Reliable Supply
Ordered multiple boxes. Consistency across batches was good. Delivery was on time and packaging prevented damage.
Anonymous
Feb 10, 2026
Rating: 5/5
Perfect for Solar Mounting
Used these for a ground mount solar project. The galvanization is thick and consistent. No signs of rust after installation.
Q: Are these metric or imperial sizes?
A: These bolts are manufactured using metric sizes according to GB standards.
Q: What is the length of the bolts?
A: We offer various lengths. Please select the specific size variant from the dropdown menu.
Q: Do you provide mill certificates?
A: Yes, mill certificates are available upon request for bulk orders.
Q: Can these be used in coastal areas?
A: Yes, the hot-dip galvanized finish provides strong corrosion resistance for coastal environments.
Q: Are the nuts also galvanized?
A: Yes, both the nuts and washers share the same hot-dip galvanized coating.
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