Hot-dip galvanized square nuts with internally threaded holes for compatible bolted connections in brackets, utility hardware and equipment assemblies.
WhatsApp：+86 17733036295
E-mail：info@kangnaigu.net
Phone Line：+86 13333199538
Address：Dalian Office, Shahe City, Xingtai City, Hebei Province
Hot-dip galvanized square nuts with internally threaded holes for compatible bolted connections in brackets, utility hardware and equipment assemblies.
| Product Name | Hot Dip Galvanized Square Nut |
| Standard | DIN 557 |
| Material | Q235 / 45# Carbon Steel |
| Surface Treatment | Hot dip galvanized; optional: electro zinc plating, Dacromet |
| Structure | Square shape, internal thread, four-sided outer profile |
| Origin | Hebei · Handan · Yongnian — Integrated Manufacturer & Exporter |
| MOQ | 100 Pcs (negotiable for trial orders) |
| Galvanized Coating Thickness | ≥85μm (Hot-dip galvanized standard) |
| Strength Grade | Grade 4.8 / 8.8 optional |
| Feature | Square outer shape prevents rotation in square grooves and slots |
| Working Temperature | -40 ℃ ~ +80 ℃ |
| Service Life | 15–25 years for outdoor exposed environment |
| Hot Dip Galvanized | Main option, great corrosion resistance for outdoor power, photovoltaic projects |
| Electro Galvanized | Low cost, suitable for indoor and dry environment use |
| Dacromet Coating | Excellent anti-corrosion performance, fit for coastal harsh environments |
| Model | Thread Size | Square Width S(mm) | Nut Height(mm) | Grade |
|---|---|---|---|---|
| SN-M6 | M6 | 10 | 5.0 | 4.8/8.8 |
| SN-M8 | M8 | 13 | 6.5 | 4.8/8.8 |
| SN-M10 | M10 | 16 | 8.0 | 4.8/8.8 |
| SN-M12 | M12 | 18 | 10.0 | 4.8/8.8 |
| SN-M16 | M16 | 24 | 13.0 | 4.8/8.8 |
| SN-M20 | M20 | 30 | 16.0 | 4.8/8.8 |
| Applications | Photovoltaic mounting bracket, overhead power fittings, channel steel, slotted support, machinery, steel structure fastening; square profile locks in slots to avoid spinning. |
| Packaging | Woven bag or wooden pallet, waterproof stretch film wrapped |
| Documents | PI, Packing List, Certificate of Origin, Mill Test Certificate |
| Payment Terms | 30% T/T in advance, balance before shipment |
| Lead Time | 3–7 days for regular stock, 7–15 days for customized specifications |
Please tell us the thread size and strength grade you need. We supply DIN557 hot dip galvanized square nuts for photovoltaic and power fastening projects.
Email: info@kangnaigu.net
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