Round EPDM Flat Gasket Rubber Waterproof Washer Sealing Customized Nylon Washer

Name: Round EPDM Flat Gasket Rubber Waterproof Washer Sealing Customized Nylon Washer
Brand: Handan Haosheng Fastener Co., Ltd.
SKU: 2104891892

Hebei, ChinaHandan Haosheng Fastener Co., Ltd.

US$0.05

100-999 pieces

US$0.04

1,000-9,999 pieces

US$0.03

10,000+ pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Groove

Word

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, Standard

Selling Units

Single Item

Usage

Construction Structure

Measurement System

Inch

Size

St3.9-6.3

Place of Origin

Hebei, China

MOQ

100PCS

OEM

OEM Welcomed

Ample

Availabe

Finish

Zinc, Dacromet

Model Number

DIN7504K

Single Package Size

25X25X27cm

Transport Package

Customized

Specification

16mm-200mm

Trademark

YFN

Origin

Hebei

HS Code

73191590

Production Capacity

5000ton/Month

Key features

OEM/ODM Service Available: We welcome OEM and ODM orders with custom designs and manufacturing capabilities.

Custom Size Support: Size customization is supported; please share product drawings for a quote.

Wide Material Selection: Available in Carbon Steel, Stainless Steel, Titanium, Aluminum, Brass, Nylon, and Plastic.

ISO9001 Certified Quality: Factory certified with ISO9001 standards and maintained by advanced machinery.

Fast Shipping & Samples: Fast shipping available; free samples provided for standard fasteners if in stock.

Customized Lead Time: Customized lead time ranges from 30 to 60 days depending on order specifics.

Multiple Steel Grades: Offers DIN grades 4.6 to 12.9 and SAE grades 2, 5, and 8 for various strength needs.

Diverse Finishing Options: Finishing includes Black Phosphated, Grey Phosphated, Blue-white zinc, White zinc, and Dacromet.

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: ≤0.59hTerms 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?

Supporting size customization, you can share us the product drawing, we will quote to you according to your size

Q:How is the quality?

Our factory is ISO9001 factory, and we have lots machines to maintain the high quality standard,our quality products are used by top professionals through out worldwide.

Q:Do you provide samples? Is it free or extra?

We can provide samples, it depends we have stock or not, if we need to buy molds, reasonable charge may apply. Please contact our staff for more information.

Q:What is your payment method?

L/C,T/T

Q:Can you make my designs?

Yes, we can