What advantages do you have?

1. Strict QC: For each order, strict inspection is carried out by the QC department before shipping to avoid bad quality. 2. Shipping: We have a shipping department and forwarder to promise faster delivery and protect goods well.

DIN557 Concave Square Nut Stainless Steel M6 Square Nut Unfinished Hex Split Nut

Name: DIN557 Concave Square Nut Stainless Steel M6 Square Nut Unfinished Hex Split Nut
Brand: Handan Haosheng Fastener Co., Ltd.
SKU: 2098321822

Hebei, ChinaHandan Haosheng Fastener Co., Ltd.

US$0.10

10-999 pieces

US$0.09

1,000+ pieces

Product profile

Customization

Available

Material

Stainless Steel Carbon Steel

Standard

DIN, ANSI, GB

Grade

8/10

Selling Units

Single Item

Measurement System

Metric

Delivery Time

7-15 Days

Single Gross Weight

25.000kg

Sample

Avaliable

Single Package Size

25X25X16.5cm

Surface Treatment

Plain.Black.Zinc Plate.HDG

Application

General Industry

Brand Name

Haosheng

Product Name

Self Lock Hex Nuts

Sinale Aross Weiaht

25.000ka

Model Number

M5-M36

Certificate

ISO9001:2008

Transport Package

Customized

Specification

M6-M36

Trademark

YFN

Origin

Hebei, China

HS Code

73181590

Key features

OEM/ODM Customization: Professional manufacturer accepting OEM and ODM services with competitive pricing.

Strict Quality Control: Professional QC team inspects every item from production to packaging to ensure quality.

Fast Delivery Service: Dedicated shipping department ensures faster delivery and secure protection of goods.

Free Sample Available: Free samples provided for testing and quality checking before bulk orders.

ISO9001 Certified: Certified by ISO9001 quality management system with CE and RoHS approvals.

Wide Material Options: Available in Stainless Steel and Carbon Steel with various surface treatments.

Experienced Manufacturer: Over 30 years of experience in manufacturing high-strength fasteners.

Global Export Capability: Products exported to over 30 countries including EU, North America, and Asia.

Company profile

Cooperated with Fortune 500Experienced TeamManagement CertificationImporters and Exporters

Handan Haosheng Fastener Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2008-04-01Nearest Port: TIANJIN, QINGDAO, YIWUAverage Response Time: ≤0.44hTerms of Payment: T/T, PayPal, Money Gram, etc.

AI-Powered supplier vetting

SummaryHandan Haosheng Fastener Co., Ltd. is a China-based limited company established in 2007 with 103 employees and a stated scope covering processing and sales of standard parts and power fittings. It demonstrates broad customization, ODM, recent product development, OEM service for known brands, documented quality procedures, five quality inspectors, and production equipment for annealing, forming, drawing, heading, screw making, and tempering. Service support is comparatively limited: there is no reported inventory, overseas warehouse, showroom, overseas agent or branch, and no valid manufacturing-capacity contract with related subcontractors. Complaint handling has a procedure but lacks written records. ERP integration is reported, while certification holdings and detailed customer references are not provided. Financial assessment is limited because the supplied financial records are incomplete and are not evaluated here with monetary figures.

Supplier typeThe supplier is identified as Handan Haosheng Fastener Co., Ltd., a Chinese limited company located in Handan, Hebei, established in 2007, with 103 employees. Its stated business scope is processing and sales of standard parts and power fittings, subject to required approvals for restricted activities.

After-Sales capabilityThe supplier has a corrective and preventive action procedure with follow-up records and written service-assessment procedures, but complaint handling has no written records. It reports no inventory, overseas warehouse, showroom, overseas agent, or branch, and lists zero countries with overseas services; it has participated in Fastener Fair Global 2025 and can serve through stated trade terms.

R&D capabilityThe supplier reports new products during the past year, provides ODM services and multiple customization routes, and uses an ERP system for production, procurement, quality control, and logistics digitization. However, no usable SDK is available, which limits evidence of software-development integration capability.

Production capacityProduction evidence includes five quality inspectors, dedicated equipment for annealing, shooting, drawing, cold heading, screw making, and tempering, plus uniformly followed finished-product inspection instructions and a one-month stated lead time in both peak and off-season. The absence of a valid manufacturing-capacity contract with related subcontractors is a documented control weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. The same broad capability is reported in both R&D and design-capability records, indicating a strong stated ability to adapt products to customer requirements.