Square Weld Nuts (DIN 928)
What are Square Weld Nuts?
Square Weld Nuts are designed to be permanently welded onto a metal surface, providing a solid and durable threaded anchor point. Their square shape offers a larger contact area and can be advantageous for alignment or in applications where space constraints favor a specific orientation. Like their hexagonal counterparts, they typically feature weld projections (often four) around the base. These projections concentrate the welding heat, ensuring a strong, consistent weld while minimizing distortion to the internal threads from excessive heat exposure.
Material Selection Guide for DIN 928 Square Weld Nuts
Selecting the appropriate material is crucial for ensuring weld compatibility, mechanical strength, and long-term performance in the intended operating environment. Below is a comparison of standard material options.
Material |
Key Properties & Weld Compatibility |
Ideal Application |
Notes |
| Carbon Steel | High strength, cost-effective. Requires minimal surface preparation. Must be welded to compatible uncoated or low-carbon steel surfaces. | General industrial use in dry, indoor environments where corrosion is not a concern. | Will rust if exposed to moisture. A protective coating (paint, plating) is often required after welding for any non-dry application. |
| Stainless Steel A2 (18-8) | Good corrosion resistance, protects against rust from water and mild chemicals. Weld to stainless steel surfaces for optimal performance. | Outdoor fittings, architectural applications, and environments with occasional moisture or mild chemical exposure. | Provides a solid balance of corrosion resistance and affordability. Not recommended for continuous exposure to chlorides or strong acids. |
| Stainless Steel A4 (316) | Excellent corrosion resistance, superior to A2/18-8 grade. Resists degradation from harsh weather, saltwater splash, and a wide range of chemicals. Weld to stainless steel surfaces. | Marine environments, chemical processing plants, coastal architecture, and other highly corrosive settings. | The premium choice for maximum durability in aggressive environments, though at a higher material cost. |
Download DIN 928 Dimensions pdf and DIN 928 Weight Chart or views online
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Active Stock List (All items are currently in stock)：
PIC |
PRODUCT |
SIZE |
GRADE |
FINISH |
THREAD |
 |
Square Weld Nuts (DIN 928) - Stainless Steel (A2) | M4-M12 | A2 Grade | Natural | Coarse |
|
Square Weld Nuts (DIN 928) - Marine Stainless Steel (A4) | M4-M12 | A4 Grade | Natural | Coarse |
|
Square Weld Nuts (DIN 928) - Low Carbon Steel | M4-M12 | C-1008 Grade | Bare | Coarse |