China Wholesale Customized Dome Bolt Nut Screw Insert Square Cage Lock Heavy Coupling Steel Hex Flange Nut

Name: China Wholesale Customized Dome Bolt Nut Screw Insert Square Cage Lock Heavy Coupling Steel Hex Flange Nut
Brand: Handan Haosheng Fastener Co., Ltd.
SKU: 2098476642

Hebei, ChinaHandan Haosheng Fastener Co., Ltd.

US$0.09

500-4,999 pieces

US$0.03

5,000+ pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

M4-M10

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB

Grade

4.8/6.8/8.8/10.9/12.9

Selling Units

Single Item

Measurement System

Metric

Keyword

9334

Size

M4-M24

Single Package Size

2X2X3cm

Place of Origin

Hebei,China

Surface Treatment

Zinc

Name

Long Nut

Brand Name

DIN9334

Product Name

Long Nut

Transport Package

Customized

Specification

M6-M10

Trademark

YFN

Origin

Hebei

HS Code

73191590

Production Capacity

5000ton/Month

Key features

Custom Size Support: Supports size customization based on customer product drawings.

OEM/ODM Service: Provides OEM and ODM services for custom designs and manufacturing.

ISO9001 Certified: Factory certified with ISO9001 to ensure high quality standards.

Wide Material Grades: Available in DIN Gr.4.6 to 12.9 and SAE Gr.2, 5, 8.

Multiple Surface Treatments: Options include Zinc, Black Oxide, Galvanized, and Nickel Plated.

Free Sample Available: Free samples provided for standard fasteners if in stock.

Fast Shipping: Strict quality check with service for OEM/ODM and fast shipping.

Carbon Steel Construction: Made from high-quality carbon steel for durability.

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: ≤0.48hTerms 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.

Product Q&A

Q:Can you customize the size?

Yes, we support size customization. You can share your product drawing, and we will quote based on your specific size.

Q:How is the quality?

Our factory is ISO9001 certified and equipped with many machines to maintain high quality standards. Our products are used by top professionals worldwide.

Q:Do you provide free samples?

We can provide samples depending on stock availability. If molds need to be purchased, a reasonable charge may apply. Please contact us for details.

Q:What are the payment methods?

We accept L/C (Letter of Credit) and T/T (Telegraphic Transfer).

Q:Can you manufacture custom designs?

Yes, we can manufacture products based on your designs.