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.

High-Strength Square Head Bolts Carbon Steel Square Head Bolts

Name: High-Strength Square Head Bolts Carbon Steel Square Head Bolts
Brand: Handan Haoqiang Fasteners Manufacturing Co., Ltd.
SKU: 1972344781

Hebei, ChinaHandan Haoqiang Fasteners Manufacturing Co., Ltd.

US$0.01-0.02

1 kgs

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Titanium/Titanium Alloy

Type

Square Head

Model NO.

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

Connection

Common Bolt

Head Style

Square

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Building

Thread

Coarse/ Fine

Surface Treatment

Zinc Plated / Hot DIP Galvanized / Black Oxide

Head Type

Square Head

Manufacturing Process

Cold Forged / Hot Forged

Applications

Construction / Railway / Machinery / Wood Structur

Packing

Carton + Pallet / Bulk Packing

Transport Package

We Can Follow Customer's Request

Specification

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

Trademark

Origin

Handan City

HS Code

731816

Production Capacity

50000000

Key features

High-Strength Options: Available in Grade 8.8 and higher grades for demanding machinery applications.

Wide Size Range: Sizes from M3 to M100 and 1/8 inch to 4 inches to fit diverse projects.

Multiple Standards: Complies with DIN, ANSI, GB, JIS, BSW, and GOST international standards.

Custom Surface Treatment: Options include Zinc Plated, Hot DIP Galvanized, and Black Oxide finishes.

Stable Square Head: Square head design prevents rotation, ensuring stability during high torque mounting.

OEM/ODM Service: Supports full customization from samples, designs, and minor adjustments.

12-Month Warranty: Comprehensive quality guarantee with prompt replacement for defective items.

Global Shipping: Flexible logistics via sea, air, or express courier with real-time tracking.

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: ≤8.67h

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.