Carbon Steel Hex Coupling Nut Long Nut Yellow Zinc

**Product Specifications** --- **Carbon Steel Hex Coupling Nut – Yellow Zinc Coated** 1. **Description**: This is a high-quality carbon steel hex coupling nut with a yellow zinc finish, designed for long-term durability and corrosion resistance. 2. **Material**: Carbon Steel 3. **Surface Treatment**: Yellow Zinc 4. **Size Range**: M6 (1/4") to M24 (1") 5. **Mechanical Properties**: Class 6 6. **Packing Options**: Bulk packing, box packing, or customized packaging based on customer requirements We specialize in producing a wide range of nuts including hex nuts, flange nuts, Kep nuts, nylon nuts, flange nylon nuts, square nuts, coupling nuts, jam nuts, heavy hex nuts, and sliding channel nuts. Our products are used across various industries such as automotive, construction, and machinery. If you are interested in our products, feel free to contact us. We will provide the best possible price once we receive your inquiry. --- **Technical Delivery Conditions**

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. The Dragon Iron Group specializes in the production and sales of fasteners, hardware parts, forging, and machine parts for the automotive and other industries. With 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, making it easy for us to export our products worldwide. **What do Lockey produce?** As a fastener manufacturer, we produce a wide range of products, including but not limited to: 1. Bolts, studs, and threaded rods 2. Hex nuts, nylon nuts, and flange locknuts 3. Tapping screws, drilling screws, wood screws, machine screws, and socket cap screws 4. Plain washers, spring washers, and tooth washers 5. Structural applications such as ASTM A325/A490, ASTM F1852/F2280, DIN 6914/5/6, and DIN 7990 In addition, we also manufacture special fasteners, hardware parts, and components for the automotive industry. We supply parts 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 development. We focus on both technological and conceptual innovation to ensure continuous growth. We have a team of professionals who excel in management and cooperation. Contacting them ensures a satisfactory result. We consider ourselves more than just a supplier—we are a partner. We don’t just sell; we share knowledge about fasteners, market trends, and profits. We are friends who care about your success and the quality of our products. **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. 80% of our staff are skilled and have worked with us for over five years. Employees undergo training programs to prevent and address issues effectively. **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. **Do you have a published price list?** No, we don’t. Our market conditions are always changing, which makes standard pricing difficult. Our sales team is flexible and can offer the best price at any time. **Do you offer discounts?** Yes, we offer discounts based on order quantity. However, we believe our sales team provides the best possible price. While there may be a small discount, we encourage you to explore further for better deals. **Do you provide samples?** Yes, we do. Free samples are available if they are in stock. However, we 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 your sales representative for an accurate shipment date. **What are the payment terms?** T/T and L/C are preferred. Western Union is also accepted for low-value payments, such as sample shipping fees.

Beverage Display

Upright Display Refrigerator,Vercial Display Refrigerator,Beverage Chiller

ZHENGZHOU KAIXUE COLD CHAIN CO., LTD. , https://www.supersnowfreezer.com