Is it possible to get a sample before bulk order?

Yes, samples are available for testing and quality verification.

What are the available thread sizes?

We offer thread specifications ranging from M5 to M20.

What is the head style of this bolt?

This bolt features a round head with a square neck design.

High-Quality DIN603 Carriage Bolt with Square Neck Design

Name: High-Quality DIN603 Carriage Bolt with Square Neck Design
Brand: Taizhou Fengye Metal Products Co., Ltd.
SKU: 2098878475

Jiangsu, ChinaTaizhou Fengye Metal Products Co., Ltd.

US$0.05

1,000-9,999 Pieces

US$0.03

10,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round Head

Model NO.

DIN603

Head Style

Round

Standard

DIN

Grade

A2-70

Application

Industry

Finish

Polishing

MOQ

1000PCS

Packing

Carton+Pallet

Delivery Time

7-15 Working Days

Measuring System

Metric

Sample

Available

Length

12mm-100mm

Advantage

OEM Customized Service Provided

Item

China Fastener

Certificate

CE, SGS, ISO

Customized

Support

Thread

Fully Thread

Product Name

Round Head Square Neck Carriage Bolt

Service

OEM/ODM

Quality

High Practicability

Specification

M5-M6

Trademark

Fengye

Origin

Jiangsu, Taizhou

Production Capacity

15tons/Month

Key features

DIN603 Standard Compliance: Manufactured strictly according to DIN603 standard for square neck carriage bolts.

High Grade Stainless Steel: Made from A2-70 grade stainless steel ensuring high corrosion resistance and strength.

OEM and ODM Support: Full customization services including design, samples, and flexible customization options.

Wide Size Range: Available in lengths from 12mm to 100mm with various thread specifications M5 to M20.

Certified Quality: Products certified with CE, SGS, and ISO standards for international market compliance.

Fast Delivery: Standard delivery time is 7-15 working days for both peak and off-peak seasons.

Polished Finish: Features a high-quality polishing finish for smooth appearance and durability.

Sample Availability: Samples are available for customers to verify quality before placing bulk orders.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityQuality AssuranceR&D Capabilities

Taizhou Fengye Metal Products Co., Ltd.

Jiangsu, 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: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.85h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company with manufacturing, export, service, quality-control, and R&D capabilities. It supports full and flexible customization of metal non-standard products and has launched new products within the past year, although its R&D team consists of two engineers and no SDK is available. The supplier holds ISO9001:2015 and CE certifications, maintains written procedures for supplier assessment, corrective actions, and complaint handling, and reports inventory capability and lead times within 15 working days in both peak and off-season periods. It has valid contracts with associated subcontractors and 78 qualified suppliers. Overseas service coverage is limited: it has no overseas warehouse, showroom, agent, branch, or listed service countries. Customer evidence includes OEM service for well-known brands and an 80%–100% repeat-buyer preference, but no cooperation with Fortune 500 companies is reported.

Supplier typeThe supplier is classified as a combined company and presents manufacturing, export trade, service, quality-control, and R&D capabilities. Its stated offering focuses on customized metal non-standard products, including stainless steel screws.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications supporting management-system and product-compliance capability.

After-Sales capabilityThe supplier has written procedures and followed records for handling customer complaints, as well as corrective and preventive actions. However, it reports no overseas agents or branches and no overseas service countries, limiting evidence of international after-sales coverage.

R&D capabilityThe supplier reports new products within the past year, ODM services, and two R&D engineers. It does not provide an available SDK, but the reported product-development activity and R&D staffing explicitly demonstrate some innovation capability.

Production capacityThe supplier reports valid manufacturing contracts with each associated subcontractor, inventory capability, 78 qualified suppliers, and average lead times within 15 working days in both peak and off-season periods. Its stated ability to produce customized metal non-standard products further supports production capability.

Customization capabilityThe supplier explicitly offers customization from samples, customer designs, full customization, minor customization, and flexible customization. It also states that its team can customize metal non-standard products according to customer drawings.

Client casesThe supplier reports OEM service for well-known brands, an 80%–100% repeat-buyer preference, and participation in the China Yiwu International Hardware and Electrical Appliances Fair. It reports no cooperation with Fortune 500 companies, and no specific customer names or detailed case studies are provided.