How are the products packaged?

Standard packaging is 20-25 kg per carton, with 36 or 48 cartons per pallet. Custom packaging with customer logos is also available.

Is factory visit allowed?

Yes, factory visits are welcome. Please contact us in advance to arrange transportation from the airport or train station.

What certifications do you have?

We are verified suppliers on Made-in-China and undergo rigorous certification processes to ensure we are legitimate manufacturers.

Premium A2 and A4 Stainless Steel Belleville Washers for Industrial Use

Name: Premium A2 and A4 Stainless Steel Belleville Washers for Industrial Use
Brand: Bolnut Fastener Co., Ltd
SKU: 2095876172

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1 Piece

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Type

Flat Gasket

Material

Stainless Steel/Carbon Steel

Model NO.

DIN6796

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Application

Used in Between The Nut and Bolt.

Available

OEM

Finish

Natural Polished,Black Oxide, Phosphated, Dacromet

Hardness

HRC 44–52

Application Scenario

Bolt Preload Control

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M3 – M36

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

Wide Material Selection: Available in SS201, SS303, SS304, SS316, SS904L, and Carbon Steel.

Flexible Customization: Supports OEM/ODM, custom logos, designs, and specific hardness requirements.

Multiple Finishing Options: Offers Zinc, HDG, Black Oxide, Dacromet, Anodization, and Nickel plating.

Fast Sample Delivery: Free samples for standard fasteners; shipped within 2 working hours upon request.

Competitive Pricing: Cost-effective solutions backed by professional factory production capabilities.

Strict Quality Assurance: Rigorous durability testing and critical technical design to enhance lifespan.

Flexible Payment Terms: Accepts T/T, L/C, D/P, PayPal, and Western Union for secure transactions.

Experienced Manufacturer: Over 10 years of experience with verified supplier status on Made-in-China.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

Bolnut Fastener Co., Ltd

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 YearsNearest Port: SHANGHAI , NINGBO ,ZHAPU , SHENZHEN, TIANJINGAverage Response Time: ≤0.62h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Zhangjiagang, Suzhou, with business scopes covering labor protection products, apparel, textiles, communication equipment, electronics, and certain medical protective products. It is described as a professional technical supplier and offers multiple customization modes, ODM services, and OEM services for popular brands. However, it has only one R&D engineer, launched no new products in the past year, and does not provide 3D software or SDK services. Service procedures and complaint-handling procedures exist, but supplier approval records are incomplete. Financial information is represented only by reporting years, without performance values. No overseas warehouse, showroom, overseas branch or offline trade-show participation is reported.

Supplier typeThe supplier is explicitly classified as a trade company, while its stated scope includes labor protection products, apparel, textiles, medical protective equipment, communication equipment, and electronic products. It is also identified as a professional technical supplier, indicating a trading-oriented business with technical and customization support rather than confirmed manufacturing status.

After-Sales capabilityThe supplier has a clear complaint-handling procedure with followed records, and it has a corrective and preventive action mechanism with implementation records. However, its general service-assessment procedure has no records, and its approved-supplier list lacks approval signatures or dates, indicating documented but incompletely controlled service processes.

R&D capabilityThe supplier is identified as a professional technical supplier and offers ODM services, but it has only one R&D engineer, launched no new products in the past year, and lacks both 3D software design and SDK capabilities. This shows some technical development and design support, but limited demonstrated innovation output and digital R&D capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, directly evidencing broad customization and design-manufacturing support.

Client casesA repeat-buyer preference of 50%–80% is reported, and the supplier states that it provides OEM services for popular brands. These are positive customer-related indicators, but no named customers, specific projects, order examples, or independently verifiable case details are provided.