What is the material of the fastener?

The fastener is made of stainless steel.

Is the manufacturer certified?

Yes, the company holds ISO9001:2015, ISO45001:2018, and ISO14001 certifications.

GB/T 6170 Black Oxide Nut M20 Corrosion-Resistant Hex Fastener

Name: GB/T 6170 Black Oxide Nut M20 Corrosion-Resistant Hex Fastener
Brand: OPPU (Tianjin) Industrial Parts Co., Ltd.
SKU: 2189195502

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

US$0.05-0.10

10,000 Pieces

Product specifications

M

Product profile

Customization

Available

Standard

DIN, ANSI, BSW

Material

Stainless Steel

Model NO.

GB/T 6170 Black Oxide Hex Nut

Connection

Female

Surface Treatment

Galvanized Sheet

Head Type

Hexagon

Specification

M3, M4, M6, M8-M20

Trademark

oppu

Origin

Tianjin

HS Code

7415290000

Production Capacity

5000ton/Year

Key features

Corrosion-Resistant Coating: Black oxide and galvanized sheet surface treatment for enhanced durability.

Wide Size Range: Available in sizes from M1.6 to M64 to meet diverse fastening needs.

Multiple Standard Compliance: Meets DIN, ANSI, and BSW standards for global compatibility.

Stainless Steel Material: Constructed from high-quality stainless steel for strength and longevity.

ISO Certified Manufacturer: Certified under ISO9001, ISO45001, and ISO14001 standards.

Fast Lead Time: Peak and off-peak season lead times are within 15 working days.

Flexible Payment Options: Accepts LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Fortune 500 Partner: Trusted supplier with a high repeat buyer choice rate of 80% to 100%.

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: ≤0.25hTerms 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 is the minimum order quantity?

The minimum order quantity is 1000 pieces.

Q:What are the available payment terms?

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

Q:How long is the lead time?

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

Q:What standards does the nut comply with?

The product complies with DIN, ANSI, and BSW standards.

Q:What is the surface treatment?

The surface treatment includes black oxide and galvanized sheet options.

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