What are your delivery times?

Delivery time is 15-30 days. Peak season lead time is 1-3 months, while off-season lead time is one month.

Where is your factory located?

Our factory is located in Ningbo, China, a strategic port city with world-class logistics infrastructure.

What certifications do you hold?

We are ISO certified and our products comply with CE, RoHS, ISO9001, DIN, ASTM, GOST, GB, JIS, and BS standards.

Premium Black Oxide Knurled Thumb Nut Set for Versatile Applications

Name: Premium Black Oxide Knurled Thumb Nut Set for Versatile Applications
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2201445945

Zhejiang, ChinaNingbo Yinzhou Sokun Import and Export Co., Ltd.

US$0.10-1.00

10,000 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Warranty

Model NO.

CNC PART

Condition

New

Certification

CE, RoHS, ISO9001

Standard

DIN, ASTM, GOST, GB, JIS, BS

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

Key features

Customized Options: Flexible customization from samples or designs, including passivation, zinc plating, and black oxide finishes.

CE and ISO9001 Certified: Products meet CE, RoHS, and ISO9001 standards with rigorous two-stage quality assurance protocols.

Free Sample Available: 1-3 pcs standard specification samples provided free of charge, with cost refundable upon bulk order.

Fast Delivery Time: Standard delivery within 15-30 days, with custom samples ready within 15 working days.

Versatile Application: Suitable for metal recycling, cutting, spinning, processing, forging, engraving, drawing, coating, and casting machinery.

Alloy Material: Constructed from high-quality alloy material for durability and performance in industrial environments.

Multiple Standards: Compliant with DIN, ASTM, GOST, GB, JIS, and BS standards for global compatibility.

Low MOQ: Minimum order quantity is only 1 Kg, allowing for flexible purchasing for small and large projects.

Company profile

High Repeat Buyers ChoiceODM ServicesR&D CapabilitiesProduction Process Visualization

Ningbo Yinzhou Sokun Import and Export Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤6.69h

AI-Powered supplier vetting

SummarySokun is a limited company with 21 employees, related companies, and product coverage including fasteners, machined parts, and stamping parts. It supports customization from samples and designs, offers ODM services, and reports OEM service for well-known brands. Quality processes include quality assurance, documented inspection instructions, and complaint-handling records, although finished-product inspection is random and only one quality inspector is reported. Production-related strengths include in-stock capability, CNC and punching equipment, and one-month stated lead times in both peak and off-season periods. Key limitations are the absence of a valid manufacturing-capacity contract with related subcontractors, no overseas warehouse, branches, agents, or showrooms, and no documented R&D audit materials, new products in the past year, or R&D patents. Financial credibility cannot be determined from the provided information.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with followed records and accepts several quotation and payment terms. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas services, limiting evidence of localized after-sales support.

R&D capabilityThe supplier provides ODM and multiple customization-based design services, but reports no new products during the past year, no available SDK, no R&D audit documentation, and zero R&D patents. These facts indicate design support but limited documented evidence of independent innovation.

Production capacityProduction evidence includes CNC and punching equipment, in-stock capability, one-month lead times in both peak and off-season, and a product scope aligned with machined and stamping parts. Nevertheless, there is no valid manufacturing-capacity contract with related subcontractors, which creates a documented capacity-governance weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, flexible customization, and minor customization, and also offers ODM services. This is direct evidence of broad customization capability.

Product Q&A

Q:Can you provide samples?

Free samples (1-3 pcs) are available for standard specifications. Custom prototypes take 15 working days. Sample costs are refundable upon bulk order confirmation.

Q:What are your 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.

Q:Do you offer customization services?

Yes, we provide flexible customization including from samples, designs, and full customization. Finishing options include passivation, zinc plating, black, plain hdg, and yellow.

Q:What is your quality assurance process?

We use a two-stage protocol: pre-production sampling with dimensional verification and full batch inspection including torque testing, salt spray analysis, and material certification.

Q:What is the minimum order quantity?

The minimum order quantity is 1 Kg.