Can you provide free samples?

Yes, we offer free samples for standard fasteners from Jiaxing City Qunbang Hardware.

What is your price policy?

We offer high-quality products at reasonable prices. Please send an inquiry, and we will quote you a price immediately.

Qbh Carbon Steel DIN557 Fastener Square Nuts

Name: Qbh Carbon Steel DIN557 Fastener Square Nuts
Brand: Jiaxing City Qunbang Hardware Co., Ltd.
SKU: 905731835

Zhejiang, ChinaJiaxing City Qunbang Hardware Co., Ltd.

US$0.01

1,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Square Head

Model NO.

DIN557

Connection

Common Bolt

Head Style

Square

Standard

DIN

Grade

4.8

Surface Finishing

Hot-Dipped Galvanized, Zinc Plated, Black

Trade Mark

Qbh

Purpose

Machinery, Environmental, Building, Industry

Class Grade

3.6, 4.6, 4.8, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9

Available Material

Carbon Steel, Stainless Steel

Size

M5-M20

Transport Package

25kgs/Box, Bulk in Pallet

Specification

M5-M20

Trademark

QBH

Origin

China

HS Code

73181600

Production Capacity

100tons/Year

Key features

DIN 557 Standard Compliance: Manufactured strictly according to DIN 557 standard with high accuracy and international quality.

Wide Grade Range: Available in classes 3.6 to 12.9, including 4.8, 5.8, 6.8, 8.8, 10.9, and 12.9.

Customizable Surface Finish: Options include Hot-Dipped Galvanized, Zinc Plated, Black, and other coatings.

High Torque Resistance: Square geometry provides greater surface area for higher torque and loosening resistance.

Flexible Size Options: Sizes range from M5 to M20 to meet various fastening requirements.

Professional Quality Control: Strict inspection at every production link with MTC and mill certificates provided.

Competitive Pricing: Cost-effective solutions with competitive factory prices and professional supply.

Fast Delivery Service: Stock items delivered in 2-5 days; bulk orders in 18-25 days with priority production.

Company profile

Importers and ExportersYears of Export ExperiencePatents AwardedCustomization from Designs

Jiaxing City Qunbang Hardware Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2004-01-10Nearest Port: SHANGHAI, NINGBOAverage Response Time: ≤15hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, EXW, Others

AI-Powered supplier vetting

SummaryJiaxing City Qunbang Hardware Co., Ltd. is identified as a limited trading company supplying fasteners, including bolts, nuts, thread rods, washers, and related products. It reports more than 10 production lines, stated bolt and nut output, broad export-market coverage, and access to Shanghai and Ningbo ports. The supplier has documented procedures and records for corrective/preventive actions, complaint handling, supplier approval, and service-capability assessment. It provides 3D software design, ODM, and customization from designs or samples, and reports OEM service for known brands. However, no certification information is provided, overseas showrooms or agents are absent, no offline trade-show participation is reported, and recent new-product activity, environmental assessment, and fire-drill status are either negative or unknown. Financial records are referenced for multiple years, but the provided information does not establish financial strength.

Supplier typeThe supplier is explicitly classified as a limited trading company. Its stated business scope covers hardware, fasteners, plastic products, molds, and import/export activities, while its company description also presents production, design, sales, and after-sales functions.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions, customer complaints, approved-supplier updates, and service-capability assessment. It is located near Shanghai and Ningbo ports, but reports no overseas showroom, overseas agent or branch, and no offline trade-show participation.

R&D capabilityThe supplier provides 3D software design, has CAD capability, reports one R&D patent and one registered trademark, offers ODM services, and has an available SDK. Conversely, it reports no new products in the previous year and no private-mold capability, indicating documented but limited evidence of ongoing innovation.

Production capacityThe supplier reports more than 10 production lines, annual bolt output of 4,000 tons and nut output of 5,000 tons, with off-peak lead time within 15 working days. Its stated product range and proximity to Shanghai and Ningbo ports further support operational and export capability.

Customization capabilityCustomization from customer designs and samples is explicitly available, together with 3D software design, ODM services, OEM service for known brands, CAD capability, and SDK availability. The absence of private-mold capability limits the documented customization scope but does not negate the stated services.