What is the minimum order quantity?

The minimum order quantity is 500 Kgs.

What payment terms are accepted?

We accept LC, T/T, PayPal, D/P, Western Union, and Small-amount payment.

What is the average lead time for production?

The average lead time is one month for both peak and off-season periods.

Factory Wholesale High Strength DIN 603 Carriage Bolts

Name: Factory Wholesale High Strength DIN 603 Carriage Bolts
Brand: Handan Haoqiang Fasteners Manufacturing Co., Ltd.
SKU: 1976072101

Hebei, ChinaHandan Haoqiang Fasteners Manufacturing Co., Ltd.

US$0.60-1.20

1 kg

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Round Head

Model NO.

DIN603

Connection

Common Bolt

Head Style

Square

Standard

DIN, GB

Grade

4.6/4.8/8.8

Application

Chemical Industry

Finish

Color-Zinc Plated

Thread

Coarse/ Fine

Transport Package

We Can Follow Customer's Request

Specification

We Can Follow Customer's Request

Trademark

Origin

Handan City

HS Code

731816

Production Capacity

50000000

Key features

Anti-Rotation Design: Square neck prevents rotation in wood/metal connections, ensuring secure fastening.

Wide Size Range: Available in M5-M20 and various inch sizes from 1/8' to 4' for diverse applications.

Multiple Material Options: Constructed from Carbon steel grades SAE1008, C1010, 40Cr, and others for strength.

Flexible Customization: Offers full, minor, and sample-based customization including coarse/fine threads.

Global Standards Compliance: Meets DIN, GB, ANSI/ASTM, BSW, and JIS international quality standards.

Durable Finishes: Options include Zinc Plated, HDG, Dacromet, and Black Oxide for corrosion resistance.

12-Month Quality Guarantee: Comprehensive warranty with prompt replacement or refund for defective products.

Professional Manufacturer: Established in 2005 with advanced tech, strict QC, and global export experience.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceSelf-branded

Handan Haoqiang Fasteners Manufacturing Co., Ltd.

Hebei, 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: 10 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤10.67h

AI-Powered supplier vetting

SummaryHaoqiang Fastener is a combined manufacturing and sales supplier offering bolts, nuts, screws, and washers. It reports annual productivity of 20,000 tons for hex bolts and 5,000 tons for hex nuts, supported by wire drawing, cold heading, and thread tapping equipment. The supplier provides customization from samples and designs, full, minor, and flexible customization, and offers ODM and OEM services. However, it does not provide 3D software design services and reported no new products during the past year. Quality inspection instructions are reportedly implemented uniformly. Service procedures exist for supplier assessment, corrective actions, and complaint handling, but written records are unavailable. The supplier has no overseas warehouse, showroom, agent, or branch, although it has participated in the Canton Fair. Financial records identify reporting years but provide no assessable financial results in the supplied information.

Supplier typeThe supplier is identified as a combined company engaged in manufacturing and sales of fasteners, hardware tools, and steel, with import and export activities. Its offered products include bolts, nuts, screws, and washers.

R&D capabilityThe supplier provides ODM and OEM services, but it reported no new products during the past year, no SDK availability, and no 3D software design service. This shows some product-development service capability but also explicit limitations in innovation-related resources.

Production capacityThe supplier reports annual productivity of 20,000 tons of hex bolts and 5,000 tons of hex nuts, with wire drawing, cold heading, and thread tapping machines. Its manufacturing scope covers several standard fastener categories, supporting a documented production capability.

Customization capabilityThe supplier explicitly supports customization from samples and designs, full, minor, and flexible customization, and also provides ODM and OEM services for popular brands. These multiple stated service types indicate broad customization coverage.

Product Q&A

Q:What standards do your fasteners comply with?

Our products meet DIN (German), GB (China), ANSI/ASTM (USA), BSW (UK), and JIS (Japan) standards. Custom specifications are available upon request.

Q:How can I track my international order?

A real-time tracking number will be emailed once your shipment is dispatched. For urgent inquiries, contact export customer service

Q:What are your delivery options for overseas customers?

We offer sea freight (FOB/CIF), air freight, and express courier (DHL/FedEx) with competitive rates. Delivery timelines vary by destination.

Q:What if I receive defective products?

We provide a 12-month quality guarantee. Report issues within 7 days of receipt with photos/video, and we'll arrange replacements or refunds promptly.

Q:Can you assist with material selection for extreme environments?

Absolutely! Our engineering team offers free consultation on corrosion-resistant, high-temperature, or high-load solutions.