Do you offer customization services?

Yes, we offer flexible customization including full customization from samples or designs. We can adjust standards, finishes, and certificates to meet specific requirements.

What materials and finishes are available for DIN 603 bolts?

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

Premium Quality DIN 603 Square Neck Bolts for Engineering Applications

Name: Premium Quality DIN 603 Square Neck Bolts for Engineering Applications
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2194885825

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

US$0.10

1,000-4,999 Pieces

US$0.09

5,000-9,999 Pieces

US$0.08

10,000-49,999 Pieces

US$0.06

50,000+ Pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Mushroom Head

Model NO.

DIN 603

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8/10.9/12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Standards

DIN912

Finished

Passivation, Zinc Plating, Black, Plainhdg, Yellow

Certificate

ISO9001

Selling Units

Building, Industry, Machinery

Package

Customer'require

Delivery Time

15-30

Transport Package

Cartons & Pallets or According to Customer''s Requ

Specification

Allen Bolt

Trademark

SOKUN

Origin

Zhejiang

HS Code

7318150000

Production Capacity

100000000

Key features

ISO Certified Manufacturer: Established in 2009, we are an ISO-certified fastener manufacturer with comprehensive R&D capabilities.

Flexible Customization: Offers full customization from samples or designs, including standards, finishes, and certificates.

Rigorous Quality Assurance: Implements a two-stage QA protocol with pre-production sampling and full batch torque/salt spray testing.

Free Sample Availability: Provides 1-3 free standard samples with express shipping; cost refundable upon bulk order.

Wide Material & Finish Options: Available in carbon steel and stainless steel with finishes like zinc plating, black oxide, and passivation.

Global Market Experience: Serves clients in North America, Europe, Asia, and more with 15 years of export experience.

Low Minimum Order Quantity: Accepts orders starting from 1 Kg, suitable for both small trials and large industrial projects.

Multiple Payment Terms: Supports T/T, LC at sight, D/P, PayPal, and Western Union for flexible transaction options.

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: ≤4.45h

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 delivery time for orders?

Normally 30-40 days. During peak season, lead time is 1-3 months; off-season is about one month.

Q:Can I get free samples before placing an order?

Yes, we provide 1-3 free standard specification samples. Shipping is via DHL/UPS/FedEx on customer's account. The sample cost is refundable upon bulk order confirmation.

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. We also accept LC, D/P, PayPal, and Western Union.

Q:What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 1 Kg, allowing for flexible ordering for both small and large projects.

Q:What quality standards do you follow?

We implement a rigorous two-stage quality assurance protocol including pre-production sampling and full batch inspection with torque testing, salt spray analysis, and material certification to ensure compliance with ASTM/ISO standards.