**Product Details:**
- **Model No.:** LKAV
- **Market:** Global
- **Sample:** Free (If in Store)
- **Special Features:** Self-Locking, Nylon Insert
- **Thread Style:** Right Hand
- **Certificate:** ISO9001 / Ts16949
- **Optional Material:** Stainless Steel, Carbon Steel, Alloy Steel, Brass
- **Optional Properties:** A2/4-50/70/80, Class 6/8/10, Grade 2/5/8...
- **Optional Finish:** Zinc, HDG, Magni, Geomet, Dacromet, Passivate...
- **Optional Size:** M6 - M24, 1/4" - 1"
- **Trademark:** LK
- **Transport Package:** Bulk Packing, Small Box Packing
- **Specification:** DIN, ANSI, ISO, JIS and Non-standard
- **Origin:** China
- **HS Code:** 7318
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**Product Description:**
Stainless Steel A4-70 Hex Nylon Nut, per ISO 7041, Passivated
1. **Description:** The Stainless Steel A4-70 Hex Nylon Nut is designed to meet the requirements of ISO 7041. It features a nylon insert for self-locking properties and is passivated for enhanced corrosion resistance.
2. **Material:** Stainless Steel 316 – known for its excellent strength and corrosion resistance.
3. **Surface Treatment:** Passivated – improves durability and prevents rusting.
4. **Size Range:** M5 (3/16") to M24 (1").
5. **Mechanical Properties:** A4-70 – suitable for high-strength applications.
6. **Packing:** Available in bulk or box packing, and can be customized as per customer requests.
We offer a wide range of nuts including Hex Nut, Hex Flange Nut, Kep Nut, Hex Nylon Nut, Hex Flange Nylon Nut, Square Nut, Coupling Nut, Hex Jam Nut, Hex Heavy Nut, Channel Nut (Sliding Nut), and more.
Lock Nuts provide a secure hold and reduce slippage. They are ideal for applications where strength and reliability are essential. The hexagonal drive system ensures easy installation and removal. Coarse threads are especially beneficial for brittle materials, offering faster assembly and disassembly while maintaining a strong grip.
If you're interested in our products, feel free to contact us. We will provide the best price based on your needs.
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**Technical Delivery Conditions:**
| **Item** | **Details** |
|----------|-------------|
| **Material** | Steel |
| **General Requirements** | As specified in DIN 267 Part 1 & 15 |
| **Thread** | Tolerance: 6H | Standard: DIN 13 Part 12 & 15 |
| **Mechanical Properties** | Property Class: ≤M39: 5, 6, 8 or 10; >39: By agreement | Standard: ISO 267 Part 4 |
| **Limit Deviations & Geometrical Tolerance** | Product Grade: A for up to M24 and L≤10d or 150mm; B for larger sizes | Standard: ISO 4759 Part 1 |
| **Surface Finish** | As processed | DIN 267 Parts 2, 20, 21, 9, 10 apply for surface roughness, discontinuities, widening test, electroplating, and hot dip galvanizing |
| **Acceptance Inspection** | DIN 267 Part 5 applies |
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**Q&A:**
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group focuses on manufacturing and selling fasteners, hardware parts, forging, and machine parts for the automotive and other industries. The company has its headquarters in A Lien, Taiwan, and operates through its foreign sales department in Dongguan City, with production facilities in Jingjiang City.
**What does Lockey do?**
As a fastener manufacturer, we produce a wide range of products, including bolts, studs, threaded rods, hex nuts, nylon nuts, flange locknuts, tapping screws, wood screws, machine screws, washers, and more. We also manufacture special fasteners, hardware parts, and components for the automotive industry, such as those used by 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, we continuously improve our technology and processes. Our team of skilled professionals ensures quality, reliability, and long-term partnership. We don’t just sell products — we share knowledge, trends, and profits with our customers.
**How does Lockey ensure quality?**
With an ISO 9001 certification and over 40 years of experience, we have a robust quality assurance system. 80% of our staff are experienced and trained for more than five years. Regular training sessions help prevent and resolve issues efficiently.
**Does Lockey produce non-standard items?**
Yes, we do. Send your specifications to our sales representative, and we’ll provide a quotation.
**Do you have a published price list?**
No, we don’t. Market conditions fluctuate, so we prefer to offer flexible pricing tailored to each customer’s needs.
**Do you offer discounts?**
Yes, for large orders. However, our sales team always aims to provide the most competitive price possible.
**Do you provide samples?**
Yes, stored samples are free. However, we do not cover express shipping costs.
**What is the delivery time?**
It depends on the order quantity. Standard items take about 20–40 days, while non-standard items may take 35–60 days. Contact our sales representative for exact delivery dates.
**What payment terms do you accept?**
T/T and L/C are preferred. Western Union is acceptable for small payments like sample shipping fees.
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