What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Do you offer ODM services?

Yes, ODM service is available for our customers.

What drawing formats do you accept?

We accept .jpg, .pdf, .dwg, .igs, and .stp formats.

Flat Washer and Spring Washer Factory China

Name: Flat Washer and Spring Washer Factory China
Brand: Ningbo Strong Bolt Trade Co., Ltd.
SKU: 929336425

Zhejiang, ChinaNingbo Strong Bolt Trade Co., Ltd.

Negotiable

100,000 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Carbon Steel

Model NO.

Washer Spring Washer Flat Washer

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Transport Package

Small Box & Bulk & Customizing

Specification

M6-M48 1/4"-2.1/2"

Trademark

STRONG BOLT

Origin

Ningbo, China

HS Code

7318150000

Production Capacity

2500tons/Year

Key features

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

Extensive Surface Treatments: Offers Zinc Plated, Galvanized, Nickel Plated, HDG, Anodized, Powder Coating, and more.

Customizable Packaging: Standard cartons or customized packing according to customer demand with pallets.

Diverse Processing Capabilities: Cold forging, stamping, rolling, bending, casting, extrusion, milling, and welding.

Global Standard Compliance: Exports under DIN, JIS, GB, ANSI, and BS standards including nonstandard fasteners.

Flexible Trade Terms: Supports EXW, FOB, CIF, DDP, CFR, or terms as discussed with clients.

High Mechanical Properties: Features high tensile strength and high surface hardness after processing.

Cost-Effective Technology: Uses self-developed eco-friendly tech to reduce production costs while maintaining quality.

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: ≤2.63h

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 the washers?

We offer Carbon Steel, Stainless Steel, Duplex Stainless Steel, Brass, Copper, Plastic, and Aluminum.

Q:What surface treatments do you provide?

Options include Zinc Plated, Galvanized, Nickel Plated, HDG, Copper Plated, Anodized, Polishing, Powder Coating, Geomet, Dacromet, Passivation, and Electrophoresis.

Q:Can the packaging be customized?

Yes, we provide standard cartons or customized packaging according to customer demand, including plastic bags, boxes, and pallets.

Q:What standards do your products comply with?

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

Q:What are your payment terms?

We accept T/T, L/C, and Western Union.