Carbon Steel Hex Coupling Nut Long Nut Yellow Zinc
Carbon Steel Hex Coupling Nut - Yellow Zinc Finish
1. Description: This is a high-quality carbon steel hex coupling nut with a yellow zinc finish, designed for durability and corrosion resistance in various industrial applications.
2. Material: Carbon Steel – known for its strength and reliability in demanding environments.
3. Surface Treatment: Yellow Zinc Coating – provides excellent protection against rust and enhances the nut's lifespan.
4. Size Range: M6 (1/4") to M24 (1") – suitable for a wide range of fastening needs.
5. Mechanical Properties: Class 6 – ensures standard mechanical performance for general use.
6. Packing Options: Available in bulk, box packing, or customized packaging based on customer requirements.
We offer a comprehensive range of nuts including hex nuts, hex flange nuts, keps nuts, nylon nuts, hex nylon flange nuts, square nuts, coupling nuts, jam nuts, heavy hex nuts, and sliding channel nuts, among others.
If you are interested in our products, feel free to contact us. We will provide you with 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 | - | - |
| Thread Standard | DIN13 Part 12 & 15 | - | - |
| Property Class | M2.5: 6 / M3-M39: 6, 8, 10 | A2-70, A4-70 | Subject to agreement |
| Mechanical Properties Standard | ISO 267 Part 4 | DIN267 Part 11 | DIN267 Part 18 |
| Product Grade | A for up to M24 and L ≤10d or 150mm / B for above | - | - |
| Geometrical Tolerance Standard | ISO 4759 Part 1 | - | - |
| Surface Finish | As processed, bright | Bright | Bright |
| Surface Roughness | DIN267 Part 2 | - | - |
| Surface Discontinuities | DIN267 Part 20 | - | - |
| Widening Test | DIN267 Part 21 | - | - |
| Electroplating | DIN267 Part 9 | - | - |
| Hot Dip Galvanizing | DIN267 Part 10 | - | - |
| Acceptance Inspection | DIN267 Part 5 | - | - |
Q&A
Who is Lockey?
Lockey is a fastener manufacturer established in 1973. Dragon Iron Group specializes in the production and sale of fasteners, hardware parts, forging, and machined components for 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, with its plant located in Jingjiang City, making it easy to export products worldwide.
What do Lockey produce?
As a fastener manufacturer, Lockey produces a wide range of products including but not limited to: bolts, studs, 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 fasteners (such as ASTM A325/A490, ASTM F1852/F2280, DIN 6914/5/6, DIN 7990), and custom fasteners for the automotive industry. Approximately 70% of our products are exported globally.
Why choose Lockey?
Innovation is at the core of Lockey’s success. With over 40 years of experience in fastener manufacturing and an ISO 9001 certification, we focus on continuous improvement and quality assurance. Our team of skilled professionals ensures that every product meets the highest standards. We believe in building long-term partnerships rather than just selling products. We share knowledge, trends, and even profits with our customers.
How does Lockey ensure quality?
Lockey maintains a strict quality assurance system aligned with ISO 9001 standards. Over 80% of our staff are experienced workers with more than five years of service. All employees undergo regular training to prevent and resolve any potential issues efficiently.
Do you produce non-standard items?
Yes, we do. If you have specific drawings or specifications, please send them to our sales representative, and we will provide a quotation promptly.
Do you have a published price list?
No, we don’t. Market conditions fluctuate, so we prefer to tailor our pricing to meet each customer's unique needs. Our sales team is flexible and can offer competitive prices based on your requirements.
Do you offer discounts?
Yes, we can offer discounts for large orders. However, we always strive to provide the best possible price without compromising on quality.
Do you provide samples?
Yes, stored samples are available for free. Please note that we do not have a budget for express shipping.
What is the delivery time?
Delivery time varies depending on order quantity. Standard items typically 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 terms include T/T and L/C. Western Union is also accepted for small-value payments such as sample shipping fees.
Fresh Meat display
ZHENGZHOU KAIXUE COLD CHAIN CO., LTD. , https://www.supersnowfreezer.com