Stainless Steel A4 Heavy Hex Nut - Passivated
1. **Description**: This is a heavy hex nut made from Stainless Steel A4, passivated to enhance its corrosion resistance and durability.
2. **Material**: Stainless Steel A4 (also known as 304L) for high corrosion resistance.
3. **Surface Finish**: Passivated to improve the surface quality and prevent rusting.
4. **Size Range**: Available in sizes from M6 (1/4") to M24 (1").
5. **Mechanical Properties**: Complies with A4-70 standard for strength and performance.
6. **Packing Options**: Available in bulk packing, box packing, or customized packaging based on customer requirements.
Lockey Industrial Co., Ltd. specializes in producing and exporting a wide range of nuts, including but not limited to:
- **Hex Nuts**: DIN934, ISO 4032, DIN555, DIN6915, ISO4035, ANSI B18.2.2
- **Square Nuts**: DIN562, DIN557, ANSI B18.2.2
- **Hex Flange Nuts**: DIN6923, ISO 4161, ANSI B18.2.2
- **Nylon Nuts**: DIN985, DIN982, ANSI B18.16.6
- **Special Nuts**: Hex Coupling Nut, Channel Nut, Sliding Nut
We also offer custom-made fasteners tailored to specific requirements.
**Technical Delivery Conditions**
| Material | Steel | Stainless Steel | Non-ferrous Metal |
|----------|-------|------------------|-------------------|
| General Requirements | As specified in DIN 267 part 1 | – | – |
| Thread Tolerance | 6H | – | – |
| Thread Standard | DIN13 Part 12 & 15 | – | – |
| Mechanical Properties | Property class: M2.5: 6; M3-M39: 6, 8, 10 | A2-70, A4-70 | Subject to agreement |
| Standards | ISO 267 Part 4 | DIN267 Part 11 | DIN267 Part 18 |
| Limit Deviations | Product grade: A (up to M24, L ≤10d or 150mm), B (exceeding M24 or L >10d or 150mm) | – | – |
| Surface Finish | As processed, Bright | Bright | Bright |
| Acceptance Inspection | DIN267 Part 5 | – | – |
**Q&A**
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group focuses on the production and sales of fasteners, hardware parts, forging, and machine parts for automotive and other industries. Our headquarters are located in A Lien, Taiwan. Lockey Industrial Co., Ltd. was set up in 2003 in Dongguan City as the foreign sales department of the group, with our plant in Jingjiang City for efficient export.
**What does Lockey do?**
As a fastener manufacturer, we produce a wide range of products such as bolts, studs, thread rods, hex nuts, nylon nuts, flange locknuts, tapping screws, drilling screws, wood screws, machine screws, socket cap screws, washers, structural applications, and more. We also manufacture special fasteners and parts for automotive industries like Toyota and Honda. 70% of our products are exported globally.
**Why choose Lockey?**
Innovation is at the core of our business. With over 40 years of experience and an ISO 9001 certification, we ensure high-quality products and reliable service. We are not just a supplier, but a partner who shares information, trends, and profits. Our team is skilled and experienced, ensuring that your needs are met efficiently and effectively.
**How does Lockey ensure quality?**
With over 40 years of manufacturing experience, we have developed a robust quality assurance system aligned with ISO 9001 standards. 80% of our staff are skilled professionals with over 5 years of experience. Regular training ensures that all workers are well-prepared to handle any issues that may arise.
**Do you produce non-standard items?**
Yes, we do. Please send us your specifications, and we will provide a quotation.
**Do you have a published price list?**
No, we don’t. Market conditions fluctuate, so we prefer to quote based on your specific needs. Our sales team offers flexible pricing to ensure you get the best value.
**Do you offer discounts?**
Yes, we can offer discounts based on order quantity. However, our sales team always aims to provide the best possible price.
**Do you provide samples?**
Yes, stored samples are free. However, we don't have a budget for express shipping.
**What is the delivery time?**
Standard orders take approximately 20–40 days, while non-standard orders may take 35–60 days. Please contact our sales representative for an accurate shipment date.
**What is the payment term?**
Preferred terms are T/T and L/C. Western Union is also accepted for low-value payments, such as sample shipping fees.
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RST VALVE GROUP CO.,LTD , https://www.stainlesssteel-valves.com