What is the minimum order quantity (MOQ)?

The minimum order quantity is 500 Kgs.

What are the payment terms?

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 season and off-season.

Big Head Carriage Screw: Galvanized Iron, Half Round Head Square Neck Bolt

Name: Big Head Carriage Screw: Galvanized Iron, Half Round Head Square Neck Bolt
Brand: Handan Haoqiang Fasteners Manufacturing Co., Ltd.
SKU: 1961816381

Hebei, ChinaHandan Haoqiang Fasteners Manufacturing Co., Ltd.

US$0.10-0.50

1 Piece

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Countersunk Head

Model NO.

DIN603

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, BSW, ASME

Grade

4.8

Application

Machinery, Chemical Industry, Environmental, Building

Thread

Coarse/ Fine

Package

Plastic Bag/Carton Package/Customize

Deliver Time

Follow Customer's Request

Specific Sizes

Customize

Transport Package

25kgs Ctns/Bags We Can Follow Customer's Request

Specification

M3-M100, 1/8'' -4''

Trademark

Origin

Handan City

HS Code

731816

Production Capacity

50000000

Key features

Anti-Rotation Design: Square neck prevents rotation, ideal for exposed bolt heads and high load-bearing scenarios.

Wide Material Selection: Available in Carbon Steel (SAE1008, C1010, etc.) and Stainless Steel for diverse applications.

Multiple Finish Options: Offers Plain, ZP, YZP, HDG, Dacromet, Black Oxide, and Mechanical Galvanizing finishes.

Global Standard Compliance: Meets DIN, ANSI/ASTM, GB, BSW, and JIS standards for international project compatibility.

Flexible Customization: Customizable thread (Coarse/Fine), packaging, specific sizes, and delivery times per request.

Extensive Size Range: Available in Metric (M6-M100) and Imperial (1/8'-4') sizes to suit various machinery needs.

12-Month Quality Guarantee: Comprehensive warranty with prompt replacements or refunds for defective products within 7 days.

Professional Technical Support: Free engineering consultation for material selection in extreme environments like corrosion or heat.

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: ≤7.47h

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.