**Product Details:**
- **Model No.:** LKAC
- **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 Title:**
Stainless Steel A4-70 Hex Nylon Nut, per ISO 7040, Passivated
**Description:**
This stainless steel A4-70 hex nylon nut is manufactured according to ISO 7040 standards and comes with a passivated surface finish. It is ideal for applications requiring corrosion resistance and durability.
**Material:**
Stainless Steel 316
**Surface Finish:**
Passivated
**Size Range:**
M5 (3/16") to M24 (1")
**Mechanical Properties:**
A4-70
**Packing Options:**
Bulk packing, box packing, or as per customer request, then packed on pallets.
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), etc.
Lock nuts ensure a secure hold and reduce slippage. Stainless steel fasteners are ideal when strength and cost-effectiveness are priorities. The hexagonal drive system allows for easy tightening and loosening. Coarse threads are better suited for brittle materials and allow for faster assembly and disassembly.
If you're interested in our products, feel free to contact us. We'll provide the best price based on your requirements.
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**Technical Delivery Conditions:**
| **Category** | **Details** |
|--------------|-------------|
| **Material** | Steel |
| **General Requirements** | As specified in DIN 267 part 1 & 15 |
| **Thread** | Tolerance: 6H; Standard: DIN13 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 product up to size M24 and L≤10d or 150mm; B for product exceeding size M24 or L>10d or 150mm; Standard: ISO 4759 Part 1 |
| **Surface Finish** | As processed; DIN267 Part 2 (surface roughness); DIN267 Part 20 (permissible surface discontinuities); DIN267 Part 21 (widening test); DIN267 Part 9 (electroplating); DIN267 Part 10 (hot dip galvanizing) |
| **Acceptance Inspection** | DIN267 Part 5 |
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**Q&A:**
**Who is Lockey?**
Lockey is a fastener manufacturer founded in 1973. Dragon Iron Group focuses on the production and sale of fasteners, hardware parts, forging, and machine parts for the automotive and other industries. The company is headquartered in A Lien, Taiwan. Lockey Industrial Co., Ltd. was established in 2003 in Dongguan City as the foreign sales department of the group, with its plant located in Jingjiang City, making it easy to export products globally.
**What does Lockey do?**
As a fastener manufacturer, we produce a wide range of products including:
- Bolts, studs, and threaded rods
- Hex nuts, nylon nuts, flange locknuts
- Tapping screws, drilling screws, wood screws, machine screws, socket cap screws
- Plain washers, spring washers, tooth washers
- Structural applications such as ASTM A325/A490, ASTM F1852/F2280, DIN6914/5/6, DIN7990, etc.
We also produce special fasteners, hardware parts, forging, and machine parts for the automotive industry, serving clients like Toyota and Honda. 70% of our products are exported worldwide.
**Why choose Lockey?**
Innovation is at the core of everything we do. With over 40 years of experience and an ISO 9001 certification, we continuously strive to improve our processes and products. Our team of skilled professionals ensures quality and reliability. We don’t just sell products—we build partnerships, share knowledge, and work together to achieve success.
**How does Lockey ensure quality?**
With over 40 years of manufacturing experience and an ISO 9001-certified quality assurance system, we have strict criteria in place to ensure consistent quality. 80% of our staff are skilled workers with more than five years of experience. Regular training sessions help them prevent and resolve issues efficiently.
**Do you produce non-standard items?**
Yes, we do. If you have specific drawings or requirements, send them to our sales representative, and we will provide a quotation.
**Do you have a published price list?**
No, we do not. Market conditions fluctuate, so we prefer to offer flexible pricing based on your needs. Our sales team can provide the best possible quote tailored to your order.
**Do you offer discounts?**
Yes, we can offer discounts based on large orders. However, we believe our sales team provides the most competitive price available, so the discount may not be very large. Feel free to explore and compare.
**Do you provide samples?**
Yes, we can provide stored samples for free. However, we do not have a budget for express shipping.
**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. Please check with our sales representative for an accurate shipment date.
**What is the payment term?**
T/T and L/C are preferred. Western Union is also acceptable for small payments, such as sample express fees.
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