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Heavy-Duty Cup Head Bolts for Construction and Industrial Use
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
AvailableMaterial
Stainless SteelType
Mushroom HeadModel NO.
DIN 603Connection
Common BoltHead Style
RoundStandard
DIN, ANSI, GB, JIS, BSW, GOSTGrade
8.8/10.9/12.9Application
Machinery, Chemical Industry, Environmental, BuildingFinish
Passivation, Zinc Plating, Black, Plainhdg, YellowStandards
DIN 603Finished
Passivation, Zinc Plating, Black, Plainhdg, YellowCertificate
ISO9001Selling Units
Building, Industry, MachineryPackage
Customer'requireDelivery Time
15-30Name
Stainless Steel Carriage BoltService
Customized OEM ODMSample
AvailabeQuality
100% Professional TestTransport Package
Cartons & Pallets or According to Customer''s RequSpecification
Carriage boltTrademark
SOKUNOrigin
ZhejiangHS Code
7318150000Production Capacity
100000000Key features
Diverse Material Options: Available in Carbon steel and Stainless steel to suit various environmental needs.
Multiple Surface Finishes: Options include Zinc Plated, Hot Dip Galvanized, Dacromet, Nickel Plated, Black Oxide, and Plain.
Customizable Dimensions: Sizes are available according to reference standards and specific customer requirements.
OEM and ODM Services: Full customization services available from samples and designs for unique project needs.
ISO 9001 Certified: Manufacturer is ISO-certified ensuring adherence to international quality management standards.
Rigorous Quality Testing: Includes pre-production sampling, dimensional verification, torque testing, and salt spray analysis.
Sample Availability: Free samples (1-3 pcs) available for standard specifications with refundable cost on bulk orders.
Global Market Experience: Serving clients across North America, Europe, Asia, and other regions with 15 years of export experience.
Company profile
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: ≤5.09h
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 your corporate profile and manufacturing capability?
A:
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
Q:What is your quality assurance system?
A:
We implement a rigorous two-stage quality assurance protocol: Pre-production sampling with dimensional verification and 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.
Q:What are your core product portfolio items?
A:
Our manufacturing expertise covers: Industrial Fastening Solutions including Hex bolts, machine screws, locking nuts, flat washers, threaded rods, blind rivets, retaining clips, and precision-engineered CNC-machined components; Solar Energy Installation Systems including Ground-mounted & rooftop solar racking systems, PV module mounting accessories, UL-certified cable management solutions, and corrosion-resistant ABS combiner box mounting brackets.
Q:Can you provide a sample?
A:
Free samples are available (1-3 pcs standard specification). Express options include DHL/UPS/FedEx (customer's account). Prototyping service offers customized samples within 15 working days. Note: Sample cost is refundable upon bulk order confirmation.
Q:What are your payment terms and trade services?
A:
Standard commercial terms include 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 include SWIFT transfer, LC at sight (negotiable for bulk orders).
Send Inquiry
*To:
Ningbo Yinzhou Sokun Import and Export Co., Ltd.
Ningbo Yinzhou Sokun Import and Export Co., Ltd.*Content:
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