Premium M3 Knurled Thumb Screws - Stainless Steel for Better Grip
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Product Highlights
- ISO 9001 Certified Manufacturer: Established in 2009 with rigorous two-stage quality assurance and ASTM/ISO compliance.
- Flexible Customization Options: Full customization available from samples or designs with passivation and plating finishes.
- Wide Material & Standard Range: Alloy material available with DIN, ASTM, GOST, GB, JIS, and BS standard compliance.
- Global Market Experience: Serving North America, Europe, Asia, and other regions with 15 years of export history.
- Fast Sample Delivery: Free standard samples available; customized prototypes delivered within 15 working days.
- Competitive MOQ: Minimum Order Quantity starts at just 1 Kg for flexible purchasing.
- Comprehensive Payment Terms: Accepts T/T, LC, D/P, PayPal, and Western Union for diverse transaction needs.
- Strategic Logistics Location: Based in Ningbo with access to Shanghai and Ningbo ports for efficient shipping.
Product Attributes
- Customization
- Available
- After-sales Service
- /
- Warranty
- /
- Model NO.
- CNC PART
- Condition
- New
- Certification
- CE, RoHS, ISO9001
- Standard
- DIN, ASTM, GOST, GB, JIS, BS
- Customized
- Customized
- Material
- Alloy
- Application
- Metal Recycling Machine, Metal Cutting Machine, Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Engraving Machinery, Metal Drawing Machinery, Metal Coating Machinery, Metal Casting Machinery
- Finished
- Passivation, Zinc Plating, Black, Plainhdg, Yellow
- Certificate
- ISO9001/SGS
- Package
- Customer'require
- Delivery Time
- 15-30
- Transport Package
- Customization
- Specification
- customization
- Trademark
- customization
- Origin
- Zhejiang
- HS Code
- 732690
- Production Capacity
- 100000000
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description


Ningbo Yinzhou Sokun Import & Export Co., Ltd. is a precision manufacturing factory based in Ningbo, China-a strategic port city with world-class logistics and transportation infrastructure.
Core Expertise:
We specialize in precision machining services and custom non-standard parts manufacturing, including:
- CNC machined components
- Complex turned/milled parts
- Stamping parts
- Fasteners and engineered fastening solutions
- Bespoke products tailored to client specifications
We welcome OEM/ODM inquiries and look forward to building long-term partnerships grounded in excellence.







| Q1. Corporate Profile & Manufacturing Capabilities |
| A1: Established in 2009, we are an ISO-certified fastener manufacturer and solar mounting system solutions provider headquartered in Ningbo, China. With comprehensive R&D capabilities and vertically integrated production facilities, we serve global markets including North America, Oceania, China Domestic Market, Eastern Europe, Southeast Asia, South America, Africa, and the Middle East. Our expert engineering teams specialize in precision fastener development, lean manufacturing, multi-stage quality assurance protocols, and after-sales service management. |
| Q2. Quality Assurance System |
| A2: We implement a rigorous two-stage quality assurance protocol: Pre-production sampling with dimensional verification Full batch inspection including torque testing, salt spray analysis, and material certification prior to container loading This dual-check system ensures consistent compliance with ASTM/ISO standards. |
| Q3. Core Product Portfolio |
| A3: Our manufacturing expertise covers: • Industrial Fastening Solutions: Hex bolts, machine screws, locking nuts, flat washers, threaded rods, blind rivets, retaining clips, and precision-engineered CNC-machined components • Solar Energy Installation Systems: Ground-mounted & rooftop solar racking systems, PV module mounting accessories, UL-certified cable management solutions, and corrosion-resistant ABS combiner box mounting brackets |
| Q4. Can you provide a sample? |
| A4: ✓ Free samples available (1-3 pcs standard specification) ✓ Express options: DHL/UPS/FedEx (customer's account) ✓ Prototyping service: Customized samples within 15 working days ✓ Note: Sample cost refundable upon bulk order confirmation |
| Q5. Payment Terms & Trade Services |
| A5: Standard commercial terms: 30% T/T deposit with 70% balance payable against Bill of Lading copy For orders under $1,000 USD, we recommend full advance payment to minimize international transaction fees Acceptable payment instruments: SWIFT transfer, LC at sight (negotiable for bulk orders) |
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR263105". Items marked "" are certified.
Company Profile
Founded in 2010, Sokun is a leading OEM fastener manufacturing, plating/finishing, and industrial production company. We are dedicated to providing high-quality fasteners at competitive prices to customers worldwide. With over 11 years of experience in manufacturing a full range of fasteners-including stainless steel, galvanized, and zinc options-we combine industry expertise with state-of-the-art facilities to deliver products that exceed customer expectations. Sokun is equipped with an R&D department, an in-house design team, and a warehouse stocking location, ensuring we can meet your demands efficiently.
Our Product Range
We offer a comprehensive selection of fasteners in both imperial and metric standards, including:
Screws, Nuts, Washers, Anchors, Pins, Keys, Square Head Set Screws, Threaded Rods, Socket Screws
These products are available in a variety of materials to suit your specific needs. At Sokun, we touch your life every day-through the house you live in, the way you commute, and the products you use.
Why Choose Sokun?
Custom Solutions: If you don't see the product you need, let us know. We'll manufacture, stock, and deliver it as per your requirements.
One-Stop Shop: We offer same-day delivery for in-stock items and tailored supply chain solutions to meet your unique needs.
Cost Savings: Our custom inventory control programs help you save significantly on costs.
Expert Support: Our experienced sales engineers are ready to provide solutions for your unique challenges.
Our Subsidiaries
Sokun is supported by its wholly owned subsidiaries:
Ningbo Yinzhou Sokun Import and Export Company Limited
Ningbo Zhenkun Machinery Company Limited
Commitment to Quality
When the success of your project depends on the strength and quality of each component, you can trust Sokun to supply the right materials to get the job done.
Get in Touch
For more information about our fastening products or to request a quote, please contact us today.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- Yinzhou District, Ningbo, Zhejiang, China
-
Plant Area
- 1927 square meters
-
Number of Employees
- 41
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month, 1-3 months
Off Season Lead Time: one month -
Nearest Port
- Shanghai Port, Ningbo Port
-
Minimum Order Quantity
- 1 Kg
-
Supply Chain Partners
- 213
Our Production Capability & Technical Expertise
-
Main Products
- Screw, Bolt, Washer, Nut, Threaded Rod
-
Production Lines
- 1
-
Production Machines
- Punching Machine, Riveting Machine, Thread Rolling Machine, Bench Lathe, Laser Marking Machine
-
Customization Options
- Flexible customization, Customization from Samples, Customization from Designs, Full Customization
-
ODM Service Available
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2010-02-10
-
Export Year
- 15 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea)
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 17
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Can you provide samples?
- Yes, free samples (1-3 pcs) are available for standard specifications. Customized samples take 15 working days, and sample costs are refundable upon bulk order confirmation.
- What are the payment terms?
- Standard terms are 30% T/T deposit with 70% balance against Bill of Lading. For orders under $1,000, full advance payment is recommended. We also accept LC, D/P, PayPal, and Western Union.
- Do you offer customization services?
- Yes, we offer flexible customization from samples or designs, including finishes like passivation, zinc plating, and various colors.
- What is your minimum order quantity?
- The minimum order quantity is 1 Kg.
- What certifications do you hold?
- We are ISO 9001 certified and our products comply with CE, RoHS, and various international standards including DIN, ASTM, and GOST.
- What is the delivery time for customized orders?
- Customized samples are delivered within 15 working days. General delivery time ranges from 15 to 30 days depending on the season.
- Where is your factory located?
- Our factory is located in Ningbo, China, a strategic port city with excellent logistics infrastructure.
- What quality assurance protocols do you follow?
- We implement a two-stage protocol including pre-production sampling with dimensional verification and full batch inspection with torque testing and salt spray analysis.
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