Do you provide free samples?

Yes, free samples are sent after confirming the order, though a sample fee may apply for high-value products.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the warranty or quality guarantee?

Our factory is certified with ISO9001:2015, ISO45001:2018, and ISO14001, ensuring high quality and reliability.

M8-M20 Made in China

Name: High-Quality Spring Washers M3/M4/M6/M8-M20 Made in China
Brand: OPPU (Tianjin) Industrial Parts Co., Ltd.
SKU: 2179225912

Tianjin, ChinaOPPU (Tianjin) Industrial Parts Co., Ltd.

US$0.05-0.10

1,000 Pieces

Product specifications

M

Product profile

Customization

Available

Type

Flat Gasket

Material

Stainless Steel

Model NO.

Spring Washer

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Specification

M3, M4, M6, M8-M20

Trademark

oppu

Origin

Tianjin

HS Code

7415290000

Production Capacity

5000ton/Year

Key features

Wide Size Range: Available in sizes from M1.6 to M64, including M3, M4, M6, M8, M10, M12, M14, M16, M20, M24, and M30.

Premium Stainless Steel: Made from A2-70/80 (304/301) and A4-70/80 (316/316L) for superior corrosion resistance.

Standard Compliance: Adheres to DIN 125 Form A and ISO 7089 international standards for reliability.

Versatile Applications: Ideal for marine, food processing, solar PV, and piping industries.

Customization Options: Accepts custom sizes, materials, finishes, and packing services.

Quality Certification: Manufacturer certified with ISO9001:2015, ISO45001:2018, and ISO14001.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season.

Free Samples: Free samples provided after order confirmation for most products.

Company profile

Cooperated with Fortune 500Self-brandedFast DeliveryQuality Assurance

OPPU (Tianjin) Industrial Parts Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 2025-06-01Nearest Port: tianjinAverage Response Time: ≤1.70hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF

About Our Factory & Business Background

AddressTianjin Xiqing Automobile Industrial Zone (Zhangjiawo Industrial Zone), No. 11 Taijin Road, Zone 1, Tianjin, China

Plant Area2834 square meters

Number of Employees34

Registered Capital10,000,000 RMB

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1000 pcs

Supply Chain Partners200

Our Production Capability & Technical Expertise

Main ProductsHardware Fastener, Bolts, Nuts, Screws, Washer, Industrial Parts, Pins, Studs

Our Industry Experience & Global Business Record

Year of Establishment2012-08-06

Main MarketsAfrica, Domestic

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff3

Overseas Agent/BranchNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015, ISO45001:2018, ISO14001, Others

Cooperated with Fortune 500Yes

Product Q&A

Q:What materials are available for these washers?

We accept AISI 303/304/316L, SUS 303/304/316, Aluminum 6061/6063/7075/2024, Brass/Bronze, and Titanium.

Q:What is the size range of the washers?

Sizes range from M1.6 to M64, including common stock sizes like M3, M4, M6, M8, M10, M12, M14, M16, M20, M24, and M30.

Q:Are custom sizes and finishes available?

Yes, we accept non-standard sizes and various finishes such as Machining, Plain, Polishing, Zinc-Plated, Black Oxide, Anodizing, Passivation, Galvanized, and Powder Coating.

Q:What standards do these washers comply with?

Our washers adhere to DIN 125 Form A, ISO 7089, GB, ANSI/ASTM, BS, BSW, and JIS standards.

Q:What is the lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season.