Stainless Steel A4 Hex Nylon Nut with Flange
1> Description: Stainless Steel A4 Hex Nylon Nut with Flange
2> Material: Stainless Steel 316
3> Surface: Passivated
4> Size: M5 (3/16") to M24 (1")
5> Mechanical Properties: A4-50/70/80
6> Packing: Bulk packing, box packing, or as per customer request, then palletized.
We produce 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 ensure a secure hold and reduce slippage. Stainless Steel fasteners are ideal for applications where strength and cost-effectiveness are key considerations. The hexagonal drive system allows for easy installation. Coarse threads are particularly suitable for brittle materials and offer faster assembly and disassembly compared to fine threads.
If you are interested in our products, please feel free to contact us. We will provide the best price once we receive your inquiry.
Q&A
Who is Lockey?
Lockey is a fastener manufacturer founded in 1973. Dragon Iron Group specializes in the production and sale of fasteners, hardware parts, forging, and machine parts for the automotive and other industries. The group has its headquarters, Dragon Iron Enterprise, in A Lien, Taiwan. Lockey Industrial Co., Ltd., established in 2003 in Dongguan City, serves as the foreign sales department of the group. Our plant is located in Jingjiang City, which enables efficient export of our products.
What do Lockey produce?
As a fastener manufacturer, we mainly produce, but are 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 applications such as ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990
Additionally, we also manufacture special fasteners, hardware parts, forging, and machine parts for the automotive industry. We supply components for Toyota, Honda, and other major brands. 70% of our products are exported globally.
Why Lockey?
Lockey never stops innovating. Innovation is the driving force behind our development. We focus on both technological and conceptual innovation, ensuring that we continue to grow and improve. We have gathered a team of professionals who excel in management and cooperation. By working with them, you can expect excellent results.
We are not just a supplier; we are your partner. We don’t only sell products—we share knowledge about fasteners, market trends, and profits. We consider ourselves friends, caring not only about our sales but also about yours and the quality of the products you use.
What do Lockey do to assure the quality?
With over 40 years of experience in fastener manufacturing and an ISO9001 certification, we address any challenges or issues effectively. Lockey has implemented a quality assurance system based on ISO9001, using criteria that consider all factors affecting product quality. 80% of our staff are skilled workers with over five years of experience. Employees undergo training sessions to learn how to prevent and handle potential issues.
Do Lockey produce non-standard items?
Yes, we do. Please send your specification drawings to our sales representative, and we will provide a quotation.
Do Lockey have a published price list?
No, we do not have a published price list. Market conditions fluctuate, making it difficult to maintain standard pricing. Our sales team is flexible when it comes to quoting your requirements, ensuring you get the best possible price at the time of your request.
Do Lockey offer a discount?
Of course, we can offer discounts based on large orders. However, as mentioned earlier, we believe our sales representatives already provide the best available price. While you may receive a small discount, it’s worth exploring further for better deals.
Do Lockey provide samples?
Yes, we do. Stored samples are completely free. However, we do not have a budget for express shipping.
What's the delivery time?
It depends on your order quantity. Standard items usually take 20–40 days, while non-standard items may take 35–60 days. Please consult with your 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 low-value payments, such as sample express fees.
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 regarding surface roughness | ||
DIN267 Part 20 shall apply regarding permissible surface discontinuities | ||
DIN267 Part 21 shall apply regarding the widening test | ||
DIN267 Part 9 shall apply regarding electroplating | ||
DIN267 Part 10 shall apply regarding hot dip galvanizing | ||
Acceptance inspection | DIN267 Part 5 shall apply regarding acceptance inspection |
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