What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Which international standards do the washers meet?

Our products comply with GB, DIN, ISO, ANSI/ASTM, BS, BSW, and JIS standards.

What is the minimum order quantity?

The provided text does not specify a minimum order quantity (MOQ).

M8-M20 Made in Tianjin

Name: Versatile Oppu Spring Washers M3/M4/M6/M8-M20 Made in Tianjin
Brand: OPPU (Tianjin) Industrial Parts Co., Ltd.
SKU: 2174191642

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

DIN 125 & ISO 7089 Compliance: Adheres to international standards for precision load distribution and reliability.

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

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

Bright Polished Finish: Pristine metallic surface ideal for high cleanliness environments like food processing and marine.

Customizable Material Options: Accepts AISI 303/304/316L, Aluminum, Brass, Titanium, and other alloys per requirements.

Customizable Surface Finish: Options include Machining, Polishing, Zinc-Plated, Black Oxide, Anodizing, and Powder Coating.

Fast Peak Season Delivery: Average lead time within 15 workdays during peak season for quick project turnaround.

ISO Management Certification: Certified under ISO9001:2015, ISO45001:2018, and ISO14001 for quality and safety assurance.

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: ≤0.55hTerms 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 for the flat washers?

Sizes range from M2 to M30, #1 to 1-1/2 inches, or non-standard sizes according to your requirements.

Q:Can the surface finish be customized?

Yes, we offer Machining, Plain, Polishing, Zinc-Plated, Black Oxide, Anodizing, Passivation, and Powder Coating.

Q:What is the lead time for orders?

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

Q:Are free samples available?

Free samples are sent after order confirmation, though a fee may apply for high-value products.

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