Do you perform quality inspections?

Yes, we conduct 100% visual inspection on finished products.

What payment terms do you accept?

We accept T/T as the term of payment.

Which international standards do your products meet?

Our products comply with DIN, ANSI/ASME, BS, GB, and JS standards.

Stainless Steel Half Round Head Square Neck Carriage Bolt

Name: Stainless Steel Half Round Head Square Neck Carriage Bolt
Brand: Jiaxing Sini Fastener Co., Ltd.
SKU: 712730445

Zhejiang, ChinaJiaxing Sini Fastener Co., Ltd.

US$1,000.00-1,020.00

1 Ton

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Surface Finishing

Zinc Plated

Model NO.

DIN 603

Certification

ISO

Performance

8.8/10.9/12.9

Type

Hexagon Head

Connection

Common Bolt

Head Style

Hexagonal

Finish

Color-Zinc Plated

Transport Package

Bulk; Small Box; Small Bags

Origin

Jiaxing, China.

HS Code

7318151001

Production Capacity

1000 Tons/Year

Key features

Diverse Material Options: Available in Carbon steel, Stainless steel, alloy steel, brass, and aluminium.

Wide Grade Range: Offers grades from 4.8 to 12.9 for metric sizes and Grade 2 to Grade 10 for inch sizes.

Comprehensive Standards Compliance: Meets DIN, ANSI/ASME, BS, GB, and JS international standards.

Flexible Customization: Supports customization from samples, designs, full customization, and minor adjustments.

Multiple Surface Finishes: Options include Plain, Zinc plated, H.D.G., Black, and Decromet.

100% Quality Inspection: Finished products undergo 100% visual inspection by packing staff.

OEM and ODM Services: Full OEM and ODM services are available for client requirements.

Low Minimum Order Quantity: Accepts orders starting from just 2 sets.

Company profile

R&D CapabilitiesCustomization from Samples100% Finished Products InspectionManagement Certification

Jiaxing Sini Fastener Co., Ltd.

Zhejiang, China

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

AI-Powered supplier vetting

SummaryThe supplier operates in hardware and mechanical equipment, with stated import/export licensing and products including fasteners. It reports OEM and ODM capability, broad customization options, and manufacturing equipment that includes punching, rolling, deburring, laser cutting, bending, riveting, and hydraulic machines. Export sales account for 90% of total sales, and stated quotation terms include FOB, CFR, CIF, and EXW. However, the available evidence indicates important operational weaknesses: only one production line is reported, there is no valid manufacturing-capacity contract with related subcontractors, no inventory or overseas service infrastructure, no written supplier-service assessment procedure, and no documented corrective-action, complaint-handling, quality-assurance, or traceability systems. No certification information or specific customer cases are provided.

Supplier typeThe supplier is presented as a hardware and mechanical-equipment business, with licensed import/export and technology-import/export activities, plus sales and R&D of hardware products, mechanical equipment, and mechanical components. Its stated product scope includes fasteners such as carriage bolts, indicating a manufacturer/supplier focused on hardware and related mechanical products.

After-Sales capabilityThe supplier has no stated overseas agents or branches, overseas warehouse, overseas showroom, or overseas service countries, and it has no written procedures or records for corrective and preventive actions or customer-complaint handling. These explicit gaps indicate weak documented after-sales and international service infrastructure.

Production capacityThe supplier lists multiple processing machines and reports one production line, a one-month average lead time in both peak and off-season, and 90% export sales. Nevertheless, it lacks a valid manufacturing-capacity contract with related subcontractors, does not continuously reconcile production quantities, has no outsourcing SOP, and has no quality assurance or raw-material traceability, creating material production-control deficiencies.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization through its design and R&D capabilities. It also states that special parts can be manufactured, providing clear evidence of broad customization capability.