| Customization: | Available |
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| Function: | Pressed, Phonation, Buffer, Drive, Restoration, Measurement |
| Material: | Stainless Steel |
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Heavy-Duty Stainless Steel Springs Black
| Length | 148mm |
| Width | 30mm |
| WLL | 500LB |
| Material | Stainless Steel 304 |
Premium Material Options
Available in Stainless Steel (304/316), Carbon Steel, or Music Wire, with optional black oxide coating for added corrosion resistance.
Custom OEM Manufacturing
Support for custom length, wire diameter, coil count, hook shape, and surface treatment-tailored to your application.
Compact & Durable Design
Ideal for small spaces and high-precision mechanisms requiring repeatable, controlled tension force.
High-Quality Surface Finish
Optional black, zinc-plated, or polished finish to match functional and aesthetic needs.
Wide Application Compatibility
Used in automotive, electronics, machinery, toys, tools, home appliances, and more.
Electronic Devices & Sensors
Medical Equipment
Automotive Components
Locking Mechanisms
Tools & Hardware Products
Toys and Consumer Products
Packaging: Bulk in polybag + export carton / Custom retail packing available
Lead Time: 7-15 days depending on quantity and customization
Shipping: Express (DHL/UPS/FedEx), Air, Sea freight available
Export Support: CO, Form E, Packing List, Invoice available
Binzhou Nuk Metals Co., Ltd is focusing on the R&D and production of all kinds of stainless steel rigging hardware and marine hardware. The company is an integrated enterprise which combines industry and trade that includes production, R&D, sales and service. Our company has an advanced precision casting line, 2 machining lines and integrated quality control system. The main annual capacity is about 1000 tons. Our products include shackles, turnbuckles, wire rope clips, swivel, thimble, hooks and other rigging and marine hardware. Our products are exported to Europe, America, Southeast Asia, the Middle East, Australia and many other regions. Our service principles is quality, efficiency and integrity.
Q1: Are you trading company or manufacturer?
A1: It is a manufacturer integrating production and processing.
Q2: Why choose us?
A2: ln this industry we have better service and quality manadement system. I believe you will choose us who are professional and offer you better prices with the same quality
Q3: What are the main materials ?
A3: The material options are Stainless Steel 304/316.
Q4: Do you accept custom logo?
A4:Yes,custom logo will be available. Please confirm the design before placing order
Q5: What is the minimum quantity for an order?
A5: Most items are in stock. so no minimum order quanttyis reauired. We are interested in providing a quote based on your total order preference and shipping costs to your location. Please advise and thank you for your attention
Q6: Do you provide samples?
A6: Yes, we can provide samples.
Q7: How to pay for order?
A7: Paypal, T/T, Bank Transfer, L/C, Western Union,etc.
Q8: How can I receive the goods?
A8: We have professional shipping agents who can deliver the goods to various ports, FOB, CIF, DHL, FedEx, etc. Please provide the detailed address,and we can also provide door-to-door service for you.
Q9: How long is your delivery time?
A:In the case of stock, it is usually 25 days. Others calculate the time accordina to your order quantity.
15+ Years Professional Spring Manufacturing
Advanced CNC Coiling & Inspection Equipment
Full OEM & ODM Capabilities
Competitive Factory Pricing
Free Sample for Quality Approval
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