What standards do your products comply with?

We export under standards of DIN, JIS, GB, ANSI, and BS, as well as nonstandard fasteners.

Is ODM service available?

Yes, ODM service is available for custom manufacturing needs.

Double Fold Self-Locking Washer with DIN 25201 (Steel/Stainless Steel) 1/4"

Name: Double Fold Self-Locking Washer with DIN 25201 (Steel/Stainless Steel) 1/4"
Brand: Ningbo Strong Bolt Trade Co., Ltd.
SKU: 2132208282

Zhejiang, ChinaNingbo Strong Bolt Trade Co., Ltd.

US$0.10

1,000 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Carbon Steel

Model NO.

DIN25201

Combination Washer Structure

a/B

Combination Washer Packaging

Half a Pack

Spring Washer Type

Standard

Process

Cold Forging,Hot Forging,Machining

Salt Spray Test

According to Requirements

Surface Treatment

According to Requirements

Support Drawing Modification

Yes

Transport Package

Small Box & Bulk & Customizing

Specification

1/4"

Trademark

STRONG BOLT

Origin

Ningbo, China

HS Code

7318220001

Production Capacity

2500tons/Year

Key features

Custom Surface Treatment: Zinc Plated, Nickel Plated, HDG, Anodized, Powder Coating, and more according to requirements.

Multiple Material Options: Available in Carbon Steel, Stainless Steel, Duplex, Brass, Copper, Plastic, and Aluminum.

DIN Standard Compliance: Professionally exporting under DIN, JIS, GB, ANSI, and BS standards for global compatibility.

Drawing Modification Support: Supports drawing modification in JPG, PDF, DWG, IGS, and STP formats.

Flexible Packaging: Plastic bag, carton, and plywood pallet options, customizable to customer demands.

10+ Years Experience: Typical China supplier with over 10 years of experience in fastener manufacturing and export.

Global Market Reach: Serving clients in Canada, Dubai, Europe, India, Chile, Peru, and Russia with positive feedback.

Comprehensive Processing: Capabilities include cold forging, hot forging, machining, grinding, milling, and welding.

Company profile

Self-brandedYears of Export ExperienceR&D CapabilitiesCustomization from Designs

Ningbo Strong Bolt Trade Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service AvailableAverage Response Time: ≤2.43h

AI-Powered supplier vetting

SummaryNingbo Strong Bolt Trade Co., Ltd. is a China-based trading company established in 2014 with 16 employees. It reports strong customization and ODM capabilities, new product activity within the past year, and extensive export activity, with 90% of sales from exports and 10 years of export experience. Its stated product output covers several fastener categories, while quality control staffing is reported at 11–20 personnel. However, service-management procedures lack documented records, and the company reports no overseas warehouses, showrooms, agents or branches, or offline trade-show participation. Financial information is identified for 2021–2023, but the provided slices do not give sufficient evidence to assess financial strength. No certification information, customer cases, or SDK availability is provided.

Supplier typeThe supplier is identified as a trading company, specifically Ningbo Strong Bolt Trade Co., Ltd., established in 2014 in Ningbo, Zhejiang, China, with 16 employees and limited-company status. This clearly establishes its business type but does not indicate that it operates as a manufacturing entity.

After-Sales capabilityThe supplier has written procedures for service assessment, supplier approval, corrective and preventive actions, and complaint handling, but no written records are reported for these processes. It also lacks overseas warehouses, showrooms, agents or branches, and reports zero countries with overseas services, limiting evidence of established international after-sales infrastructure.

R&D capabilityThe supplier reports that it introduced new products during the past year and provides ODM services. However, it reports no available SDK, so its innovation evidence supports product development and design services but not software-development integration.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing direct evidence of broad customization and design-related service capability.

Product Q&A

Q:What materials are available for this washer?

Available materials include carbon steel, stainless steel, duplex stainless steel, brass, copper, plastic, and aluminum.

Q:Can the surface treatment be customized?

Yes, surface treatments such as zinc plating, nickel plating, HDG, copper plating, anodizing, polishing, powder coating, and passivation are available according to requirements.

Q:What is the lead time for orders?

The average lead time is one month during peak season and within 15 workdays during the off-season.

Q:Do you support custom drawings?

Yes, we support drawing modification and accept formats including JPG, PDF, DWG, IGS, and STP.

Q:What are the payment terms?

Payment terms include T/T, L/C, and Western Union.