Stainless Steel A4-70 Hex Nylon Nut – Per ASME B18.16.6, Passivated
1. Description: Stainless Steel A4-70 Hex Nylon Nut, compliant with ASME B18.16.6 standards, and passivated for enhanced corrosion resistance.
2. Material: Stainless Steel 316 – known for its high strength and excellent resistance to corrosion and oxidation.
3. Surface Finish: Passivated – provides a protective layer that enhances the nut’s durability and performance in harsh environments.
4. Size Range: M5 (3/16") to M24 (1") – suitable for a wide range of applications, from small precision assemblies to heavy-duty industrial use.
5. Mechanical Properties: A4-70 – offers high tensile strength and is ideal for demanding mechanical applications.
6. Packing: Available in bulk packing or box packing, and can be customized based on customer requirements, then packed on pallets for shipment.
We manufacture a variety 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, ensuring a reliable fastening solution. Stainless Steel fasteners are ideal when both strength and cost-effectiveness are key considerations. The hexagonal drive system allows for easy installation and removal. Coarse threads are especially beneficial for brittle materials, as they allow for quicker assembly and disassembly while maintaining a strong hold.
If you're interested in our products, feel free to contact us. We’ll provide the best possible pricing once we receive your inquiry.
| Technical Delivery Conditions |
| 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 shall apply with regard to surface roughness |
| DIN267 Part 20 shall apply with regard to permissible surface discontinuities |
| DIN267 Part 21 shall apply with regard to the widening test |
| DIN267 Part 9 shall apply with regard to electroplating |
| DIN267 Part 10 shall apply with regard to hot dip galvanizing |
| Acceptance Inspection |
DIN267 Part 5 shall apply with regard to acceptance inspection |
**Q&A**
**Who is Lockey?**
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group focuses on the production and sale of fasteners, hardware parts, forging, and machined components for 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 to serve as the foreign sales department of the group, with manufacturing operations in Jingjiang City, making it easy to export products globally.
**What does Lockey produce?**
As a fastener manufacturer, Lockey produces a wide range of products, including but not limited to:
1. Bolts, studs, and threaded rods
2. Hex nuts, nylon nuts, flange locknuts
3. Tapping screws, drilling screws, wood screws, machine screws, socket cap screws
4. Plain washers, spring washers, tooth washers
5. Structural fasteners such as ASTM A325/A490, ASTM F1852/F2280, DIN6914/5/6, DIN7990
Additionally, special fasteners, hardware parts, and forged or machined components for the automotive industry are also available. We supply parts for major brands like Toyota and Honda. Over 70% of our products are exported worldwide.
**Why choose Lockey?**
Innovation is at the core of Lockey’s philosophy. We continuously innovate through technological advancements and new concepts, which drives our growth and success. Our team consists of skilled professionals who excel in management and collaboration. Working with them ensures you get satisfactory results.
We don’t just see ourselves as a supplier — we are your partner. We share insights about fasteners, market trends, and even profit. We care about your success and the quality of the products you use.
**How does Lockey ensure quality?**
With over 40 years of experience in fastener manufacturing and an ISO 9001 certification, we have developed a comprehensive quality assurance system. Our experienced staff (80% are skilled workers with over five years of tenure) undergo regular training to ensure they understand how to prevent and address any issues effectively.
**Does Lockey 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 promptly.
**Do you have a published price list?**
No, we do not. Market conditions fluctuate, so standard pricing is hard to maintain. Our sales team has the flexibility to offer competitive prices tailored to your needs.
**Do you offer discounts?**
Yes, we offer discounts based on order quantity. However, we believe our sales team already provides the best possible price. While you may receive a small discount, it's not guaranteed. Feel free to explore further.
**Do you provide samples?**
Of course! Stored samples are free of charge. However, please note that we do not have a budget for express shipping.
**What is the delivery time?**
Delivery time depends on the order quantity. Standard items usually take 20–40 days, while non-standard items may take 35–60 days. Please consult with our sales representative for an accurate shipping date.
**What are the payment terms?**
Preferred payment methods include T/T and L/C. Western Union is also accepted for low-value payments, such as sample shipping fees.
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