What certifications do you have?

We are an ISO-certified manufacturer with a rigorous two-stage quality assurance protocol ensuring compliance with ASTM and ISO standards.

What is the minimum order quantity?

The minimum order quantity is 1 Kg.

High-Quality DIN 603 Square Neck Cup Head Bolts for Builders

Name: High-Quality DIN 603 Square Neck Cup Head Bolts for Builders
Brand: Ningbo Yinzhou Sokun Import and Export Co., Ltd.
SKU: 2187972795

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

Comprehensive Customization: Flexible customization from samples and designs with full customization options available.

ISO 9001 Certified: Manufacturer holds ISO certification ensuring rigorous quality management and production standards.

Diverse Material Options: Available in Carbon steel and Stainless Steel to meet various application requirements.

Wide Standard Compliance: Meets DIN, ANSI, GB, JIS, BSW, and GOST standards for global compatibility.

Multiple Finish Options: Offers Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, and Black Oxide finishes.

Fast Sample Delivery: Customized samples available within 15 working days with free standard samples.

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, and Western Union for various order sizes.

Global Market Experience: Serving clients in North America, Europe, Asia, and the Middle East since 2009.

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: ≤4.46h

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. Customized samples can be produced within 15 working days. Sample costs are refundable upon bulk order confirmation. Express shipping via DHL/UPS/FedEx is available at the customer's account.

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 SWIFT transfer, LC at sight, D/P, PayPal, and Western Union.

Q:What is the delivery time?

Normally, delivery takes 30-40 days. During peak seasons, the lead time is one month, while off-season lead time is also one month.

Q:What materials are available?

We offer Carbon steel and Stainless Steel. The specific material can be selected based on customer requirements and application needs.

Q:Do you offer customization services?

Yes, we provide flexible customization including options from samples, designs, and full customization. We can produce non-standard parts and fasteners according to specific drawings.