What is the surface treatment for these washers?

The surface is passivated to ensure quality and durability.

Conical Spring Washers for Bolted Connections

Name: Conical Spring Washers for Bolted Connections
Brand: Ningbo Mianxuan Import &Export Co., Ltd.
SKU: 2072694025

Zhejiang, ChinaNingbo Mianxuan Import &Export Co., Ltd.

US$1.00-30.00

300,000 Pieces

Sample price:US$250.00/piece.Request sample

Product profile

Customization

Available

Type

Spring Washer

Material

Stainless Steel

Model NO.

DIN6796

Combination Washer Structure

A Type

Combination Washer Packaging

Quality

High Strength

Price

Reasonable Price

Delivery

Quicky Production Time

Reply

Within 48hours

Surface

Passivated

Packing

Customized

Transport Package

Small Box, Color Box, PE Bag

Specification

M4, M5, M6, M8, M10, M12, M16

Origin

China

HS Code

7318220001

Production Capacity

500tons/Month

Key features

High Strength Material: Made of stainless steel with high strength quality for durable bolted connections.

Custom Surface Finish: Surface is passivated to ensure corrosion resistance and aesthetic appeal.

Custom Packaging: Packing options are customized to meet specific customer requirements.

Competitive Pricing: Reasonable price structure with very competitive market rates.

Fast Response Time: Inquiries are replied to within 48 hours, often on the same day.

Global Standards Compliance: Products conform to DIN, ISO, ANSI, ASME, BSW, and JIS standards.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceR&D CapabilitiesODM Services

Ningbo Mianxuan Import &Export Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2014-07-01Nearest Port: Ningbo, Zhapu, ShanghaiAverage Response Time: ≤2.45hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryNingbo Mianxuan Import & Export Co., Ltd. is identified as a China-based manufacturer/factory offering vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber products. It reports TS 16949 and ISO 9001 certifications, more than 10 production lines, 6–10 quality-control staff, and shipment inspection reports with material certificates. The supplier provides 3D software design, ODM, and several customization options, but reports no new products in the past year, no SDK, and no OEM service for popular brands. Service-management documentation is weak: no written procedures or records are reported for assessments, corrective actions, or complaint handling. It has no in-stock capability, overseas warehouse, or overseas showroom. Financial records are indicated for 2023–2025, but their results are not provided, so financial credibility cannot be determined. No customer cases are supplied.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and limited company in Ningbo, Zhejiang, China. Its stated scope covers fasteners, metal products, machinery, vehicle parts, CNC machining, stamping, casting, die-casting, plastic, and rubber parts, indicating broad manufacturing and industrial-product coverage.

CertificationsThe supplier reports holding TS 16949 and ISO 9001 management-system certifications. It also states that each shipment will include an effective inspection report and corresponding material certificate, providing explicit evidence of documented quality-related controls.

After-Sales capabilityThe supplier reports no written procedures or records for service-capability assessment, corrective and preventive actions, or effective customer-complaint handling. It also lacks in-stock service, overseas warehouse, and overseas showroom capabilities, indicating a documented weakness in after-sales and service infrastructure.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and a product range spanning vehicle parts, CNC machining, stamping, casting, die-casting, fasteners, plastic, and rubber parts. It is located near Ningbo and Shanghai ports and reports 21 qualified suppliers, but has no inventory capability and peak-season lead-time data is inconsistent or unclear.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, 3D software design services, and ODM services. These statements provide direct evidence of broad product and design customization capability.