Is customization available?

Yes, flexible customization is available from samples, designs, or full customization. Standards can be GB, DIN, ISO, or JIS.

What quality assurance measures do you take?

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

Premium ISO Certified Cheese Head Screws for Heavy-Duty Applications

Name: Premium ISO Certified Cheese Head Screws for Heavy-Duty Applications
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2192110875

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

US$0.03

10-4,999 Pieces

US$0.02

5,000-99,999 Pieces

US$0.01

100,000+ Pieces

Product profile

Customization

Available

Type

Plain Washers

Material

Brass

Model NO.

DIN 433

Combination Washer Structure

Combination Washer Packaging

Spring Washer Type

Standards

GB, DIN, ISO, JIS

Finished

Zinc

Name

Plain Washers

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

ISO Certified Quality: ISO-certified manufacturer with rigorous two-stage quality assurance and ASTM/ISO compliance.

Flexible Customization: Full customization from samples or designs, including standards, finishes, and specifications.

Wide Material Options: Available in carbon steel and stainless steel with various finishes like zinc plating and galvanized.

Free Sample Service: Free standard samples available with refundable cost upon bulk order confirmation.

Global Supply Capability: Serving global markets with experienced engineering teams and lean manufacturing processes.

Diverse Product Range: Expertise in industrial fasteners, solar mounting systems, and precision CNC-machined components.

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: ≤4.93h

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:What is the minimum order quantity?

The minimum order quantity is 1 Kg.

Q:What are the payment terms?

Standard terms are 30% T/T deposit with 70% balance against Bill of Lading copy. For orders under $1,000 USD, full advance payment is recommended. Other options include LC at sight, D/P, PayPal, and Western Union.

Q:How long is the delivery time?

Normally 30-40 days. Peak season lead time is one month, while off-season is also one month. Customized samples take within 15 working days.

Q:Can you provide free samples?

Yes, free samples of 1-3 pieces in standard specifications are available. Sample costs are refundable upon bulk order confirmation. Express shipping can be arranged via DHL/UPS/FedEx at the customer's account.

Q:What materials and finishes are available?

Materials include carbon steel and stainless steel. Finishes available are Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain.