Are the dimensions precise?

All data are batch measurement results with positive and negative tolerances; actual values shall prevail.

What standard do these nuts follow?

These are DIN 982 standard hexagon nylon lock nuts.

304 Stainless Steel Hexagon Socket Captive Screw M3 M4 M5 M6

Name: 304 Stainless Steel Hexagon Socket Captive Screw M3 M4 M5 M6
Brand: OPPU (Tianjin) Industrial Parts Co., Ltd.
SKU: 1993787161

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

US$0.03

10,000-49,999 Pieces

US$0.01

50,000-999,999 Pieces

US$0.005

1,000,000+ Pieces

Product specifications

M

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

Captive Screw

Groove

Word

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, JIS

Grade

8.8

Specification

M3, M4, M6, M8-M20

Trademark

oppu

Origin

Tianjin

HS Code

7415290000

Production Capacity

5000ton/Year

Key features

Diverse Bolt Standards: Complies with DIN, ISO, ASME, and ASTM standards for global compatibility.

Wide Size Range: Available in cold forging (M4-M24) and hot forging (M12-M75) sizes.

Multiple Bolt Types: Includes hex bolts, socket head caps, flange bolts, and custom options.

ISO Management Certified: Certified under ISO9001:2015, ISO45000:2018, and ISO14001 standards.

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

Flexible Payment Terms: 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%-100%.

Global Market Reach: Exports to North America, South America, Africa, and Eastern Asia.

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: ≤0.04hTerms 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 material of these nuts?

The nuts are made of Carbon Steel with A2-70 grade properties.

Q:What sizes are available?

We offer sizes ranging from M3 to M20, including M3, M4, M6, M8, M10, M12, and M14.

Q:What is the lead time for orders?

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

Q:What payment methods do you accept?

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

Q:Where do you ship from?

Our nearest port is Tianjin, and we serve markets in North America, South America, Africa, Eastern Asia, the Middle East, and Eastern Europe.

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