Yellow Zinc Hex Coupling Nut Long Nut
1> Description: Yellow Zinc Hex Coupling Nut Long Nut
2> Material: Carbon Steel
3> Surface: Yellow Zinc
4> Size: M6 (1/4") to M24 (1")
5> Mechanical Properties: Class 6
6> Packing: Bulk packing and box packing, as per customer’s request
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), etc.
If you are interested in our products, please do not hesitate to contact us. We will provide the best price as soon as we receive your inquiry.
Technical Delivery Conditions |
Material |
Steel |
Stainless steel |
Non-ferrous metal |
General requirements |
As specified in DIN 267 part 1 |
Thread |
Tolerance |
6H |
Standard |
DIN13 Part 12 & 15 |
Mechanical properties |
Property class |
M3-M39:6, 8, 10 |
≤M39 |
A2-70 |
Subject to agreement |
A4-70 |
>M39 |
Subject to agreement |
Standard |
ISO 267 Part 4 |
DIN267 Part 11 |
DIN267 Part 18 |
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 |
Bright |
Bright |
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 |
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 group has its headquarters in A Lien, Taiwan. Lockey Industrial Co., Ltd. was set up in 2003 in Dongguan City 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 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, ASTM A325/A490, ASTM F1852/2280, DIN6914/5/6, DIN7990
Additionally, special fasteners, hardware parts, forging, and machine parts for the automotive industry are also available. We supply components for Toyota, Honda, and others. 70% of our products are exported globally.
Why choose Lockey?
Lockey never stops innovating. Innovation is the driving force behind our continuous development. We combine technological and conceptual innovation to ensure steady progress. We have gathered a team of skilled professionals who excel in management and collaboration. By working with them, you can expect excellent results.
We are not just a supplier—we are a partner. We don’t only sell; we share. We share the latest information on fasteners, pricing trends, and even profit. We consider ourselves friends. We care about your sales, your satisfaction, and the quality of the products you use.
What measures does Lockey take to ensure quality?
With over 40 years of experience in fastener manufacturing and an ISO 9001 certificate, we are committed to solving any challenges that may arise. Lockey has implemented a quality assurance system based on ISO 9001, drawing from our extensive experience. We have established criteria to address factors that could affect quality. 80% of our staff are skilled workers with more than five years of experience. Employees undergo training both on and off the job to ensure they understand how to prevent and handle issues effectively.
Does Lockey produce non-standard items?
Yes, we do. Please send your specification drawings to our sales representative, and we will provide a quotation promptly.
Does Lockey have a published price list?
No, we do not have a published price list. Market conditions are constantly changing, making it difficult to maintain a standard pricing structure. Our sales team has the flexibility to offer competitive quotes tailored to your needs, ensuring you get the best possible price when you need it.
Does Lockey offer discounts?
Of course, we can offer discounts based on large quantities. However, we believe our sales team provides the best possible price. While you may receive a discount, it won't be extremely large. Feel free to explore further for better deals.
Does Lockey provide samples?
Yes, we do! Stored samples are completely free. However, we currently do not have a budget for express shipping.
What is the delivery time?
It 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 shipment date.
What is the payment term?
T/T and L/C are preferred payment methods. Western Union is also acceptable for low-value payments, such as sample express fees.
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XUCHUAN CHEMICAL(SUZHOU) CO., LTD , https://www.xuchuanchem.com