Stainless Steel A4 Heavy Hex Nut Passivated
1. Description: Stainless Steel A4 Heavy Hex Nut, Passivated
2. Material: Stainless Steel A4
3. Surface Finish: Passivated
4. Size Range: M6 (1/4") to M24 (1")
5. Mechanical Properties: A4-70
6. Packing: Available in bulk or box packing, as per customer request
Lockey Industrial Co., Ltd. is a leading manufacturer and exporter of nuts, including but not limited to:
- Hex Nuts: DIN 934, ISO 4032, DIN 555, DIN 6915, ISO 4035, ANSI B18.2.2
- Square Nuts: DIN 562, DIN 557, ANSI B18.2.2
- Hex Flange Nuts: DIN 6923, ISO 4161, ANSI B18.2.2
- Nylon Nuts: DIN 985, DIN 982, ANSI B18.16.6
We also produce special nuts such as Hex Coupling Nuts, Channel Nuts, and Sliding Nuts.
Quotation will be sent shortly after receiving your inquiry.
**Technical Delivery Conditions**
| Material | Steel | Stainless Steel | Non-ferrous Metal |
|----------|-------|------------------|--------------------|
| General Requirements | As specified in DIN 267 Part 1 | - | - |
| Thread Tolerance | 6H | - | - |
| Thread Standard | DIN 13 Part 12 & 15 | - | - |
| Property Class | M2.5: 6; M3-M39: 6, 8, 10 | A2-70, A4-70 | Subject to agreement |
| Mechanical Properties Standard | ISO 267 Part 4 | DIN 267 Part 11 | DIN 267 Part 18 |
| Product Grade | A for product up to size M24 and L ≤ 10d or 150mm; B for products exceeding M24 or L > 10d or 150mm | - | - |
| Surface Finish Standards | DIN 267 Part 2 (surface roughness), Part 20 (surface discontinuities), Part 21 (widening test), Part 9 (electroplating), Part 10 (hot dip galvanizing) | - | - |
| Acceptance Inspection | DIN 267 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 the automotive and other industries. The group's 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. Our plant is based in Jingjiang City, which allows us to efficiently export our products.
**What does Lockey do?**
As a fastener manufacturer, we primarily produce:
1. Bolts, studs, and threaded rods
2. Hex nuts, nylon nuts, and flange locknuts
3. Tapping screws, drilling screws, wood screws, machine screws, and socket cap screws
4. Plain washers, spring washers, and tooth washers
5. Structural applications, such as ASTM A325/A490, ASTM F1852/F2280, DIN 6914/5/6, DIN 7990
In addition, we provide special fasteners, hardware parts, forging, and machine parts for the automotive industry. We supply parts for Toyota, Honda, and more. 70% of our products are exported globally.
**Why choose Lockey?**
Innovation is at the core of Lockey’s operations. Over 40 years of experience in fastener manufacturing, combined with an ISO 9001 certification, ensures high-quality standards. We have a team of skilled professionals who focus on both management and cooperation. When you work with us, you’re not just getting a supplier—you're gaining a partner. We share information, price trends, and even profit with our clients.
**How does Lockey ensure quality?**
With over 40 years of experience, we have developed a comprehensive quality assurance system based on ISO 9001. 80% of our staff are skilled workers with more than five years of experience. All employees undergo training to prevent and resolve issues effectively.
**Do you produce non-standard items?**
Yes, we do. Please send your specifications or drawings to our sales representative, and we will provide a quotation.
**Do you have a published price list?**
No, we don’t. Market conditions fluctuate, making it difficult to maintain standard pricing. Our sales team offers flexible quotes tailored to your needs, ensuring you get the best possible price.
**Do you offer discounts?**
Yes, we can offer discounts based on order volume. However, our sales team always aims to provide the best price available. While discounts may be offered, they are usually modest.
**Do you provide samples?**
Yes, stored samples are free of charge. However, we do not have a budget for express shipping.
**What is the delivery time?**
Delivery time depends on the order quantity. Standard items typically take 20–40 days, while non-standard items may take 35–60 days. Please consult with our sales representative for an accurate shipment date.
**What is the payment term?**
Preferred payment terms are T/T and L/C. Western Union is also accepted for small-value payments, such as sample shipping fees.
Screwed Ends Ball Valve,Screwed Ball Valve,Carbon Steel Ball Valve,Butt Weld Ball Valve
RST VALVE GROUP CO.,LTD , https://www.stainlesssteel-valves.com