Stainless Steel A4-80 Hex Nylon Nut, Passivated
1. Description: Stainless Steel A4-80 Hex Nylon Nut, Passivated
2. Material: Stainless Steel 316
3. Surface Finish: Passivated
4. Size Range: M5 (3/16") to M24 (1")
5. Mechanical Properties: A4-80
6. Packing: Bulk packing, box packing, and palletized as per customer requirements
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 provide 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 ensures ease of use. Coarse threads are better suited for brittle materials and allow for quicker assembly and disassembly compared to fine threads.
If you are interested in our products, please don’t hesitate to contact us. We will provide the best price as soon as we receive your inquiry.
Q&A
Who is Lockey?
Lockey is a fastener manufacturer founded 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 is 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 allows us to efficiently export our products.
What does Lockey do?
As a fastener manufacturer, we mainly produce but are not limited to:
1. Bolts, studs, and thread 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, ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990, etc.
In addition, we also offer special fasteners, hardware parts, forging, and machine parts for the automotive industry. We supply parts for Toyota, Honda, and many others. Over 70% of our products are exported worldwide.
Why choose Lockey?
Lockey never stops doing one thing: INNOVATE. Innovation is the driving force behind our development. Through both technological and conceptual innovation, we continue to grow and improve. We have gathered a team of skilled professionals who excel in management and cooperation. Contacting them will ensure you receive a satisfactory result.
We are glad you chose Lockey as your supplier, but we are more than just a supplier—we are your partner. We don’t just sell; we share. Share new information about fasteners, price trends, and even profit. We are friends, not just business partners. We care about your sales and the quality of your usage.
What does Lockey do to ensure quality?
With over 40 years of experience in fastener manufacturing and an ISO 9001 certification, we face challenges and solve them all ways. Lockey has set up a quality assurance system based on ISO 9001. We develop criteria that consider factors affecting quality. 80% of our staff are skilled and have worked with us for more than five years. Employees undergo training for weeks on and off the job. All these efforts guide our workers to prevent and handle issues effectively.
Does Lockey produce non-standard items?
Yes, we do. Send your specification drawings to our sales representative, and you will receive a quotation.
Does Lockey have a published price list?
No, we do not. Market conditions fluctuate, making it difficult to maintain standard pricing. Our sales staff are flexible when it comes to quoting your requirements, ensuring you get the best price available when you need it.
Does Lockey offer discounts?
Of course, we can offer discounts based on large orders. However, as mentioned above, we believe our sales staff have already provided you with the best possible price. You may receive a discount, but it might not be very significant. Feel free to explore further.
Does Lockey provide samples?
Why not? Stored samples are completely free. However, we don't have a budget for express shipping.
What is the delivery time?
It depends on your order quantity. Standard items take approximately 20–40 days, while non-standard ones take 35–60 days. Please check with your sales representative for an accurate shipment date.
What is the payment term?
T/T and L/C are preferred payment terms. 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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