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The Q 312 Spring Nuts - Type B are designed to provide a secure and reliable fastening solution for sheet metal applications. Made from high-quality carbon steel and finished with a yellow zinc plating, these nuts offer excellent corrosion resistance and durability. Featuring a tapping screw thread and a square lock cage nut design, they ensure a tight and secure fit, preventing loosening even in high-vibration environments.
| Material | Description & Applications |
|---|---|
| 65Mn Steel | High hardness; used for springs and high-strength automotive parts. |
| 316 Stainless Steel | Exceptional corrosion resistance; ideal for marine and chemical use. |
| 304 Stainless Steel | Widely used with good formability; for kitchen and architectural items. |
| Carbon Steel (Q235) | Low-carbon with good weldability; used in structural construction. |
| Alloy Steel (4140) | High strength and toughness; for shafts, gears, and heavy machinery. |
| Surface Treatment | Key Features |
|---|---|
| Dacromet | Chrome-free zinc coating; excellent for harsh environments. |
| Galvanizing | Strong corrosion protection; common in outdoor machinery. |
| Black Oxide | Chemical oxidation; protective layer for mechanical tools. |
| Nickel Plating | High hardness and high gloss; used for precision parts. |
| Passivation | Enhances oxide layer on stainless steel; used in food/medical. |
Inner Pack: Heavy-duty polyethylene bags for moisture/dust protection.
Outer Pack: 3-ply corrugated cartons with nylon reinforcement strapping.
Bulk Shipment: Palletization with PE stretch film and corner guards for stability.
Operating a 1,800+ sqm modern facility equipped with 30+ automated precision stamping machines. With over 20 years of expertise, our 40+ professional team members ensure rapid prototyping and mass order fulfillment, exceeding 200 million pieces annually.
