What is the warranty period for these screws?

We provide a standard 12-month warranty or 2,000 operating hours, whichever comes first, with optional extended coverage up to 36 months.

What are the available material grades?

Products are available in Property Class 4.8 (Low Carbon Steel), 8.8 (Medium Carbon Steel), and 10.9 (Alloy Steel) to meet different strength needs.

ISO 7380-2 Black Oxide Carbon Steel Button Head Socket Cap Screws with Integrated Washer

Name: ISO 7380-2 Black Oxide Carbon Steel Button Head Socket Cap Screws with Integrated Washer
Brand: Wenzhou Nixi Fasteners Co., Ltd.
SKU: 2122171832

Zhejiang, ChinaWenzhou Nixi Fasteners Co., Ltd.

US$0.002-0.20

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

ISO 7380-2

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

ISO

Grade

8.8

Surface Finishing

Plain

Inspection

100% QC Steps Inspect Before Shipment

Manufacture Processing

Cold Forging

Certification

ISO9001

Transport Package

20-25kg/Carton+900kg Pallet

Specification

24*24*14cm/30*26*18cm

Trademark

Nixi

Origin

Wenzhou, China

HS Code

731815

Production Capacity

500ton/Month

Key features

Integrated Washer Design: Combines button head with integrated washer to reduce part count and ensure consistent bearing surface.

Black Oxide Finish: Provides durable, uniform black appearance with minimal dimensional change for precise fit in OEM assemblies.

ISO 7380-2 Compliance: Manufactured to international standard ensuring dimensional accuracy and performance for general machinery.

High Strength Options: Available in Property Class 4.8, 8.8, and 10.9 grades to meet diverse mechanical strength requirements.

100% QC Inspection: Strict quality control with 100% inspection before shipment to ensure product reliability and consistency.

Customization Available: Offers OEM/ODM services and custom grades based on drawings or samples for tailored fastener solutions.

Versatile Applications: Ideal for electronics, furniture, automotive interiors, and precision instruments requiring discrete black finish.

Global Support & Warranty: Standard 12-month warranty with optional extended coverage up to 36 months and 24/7 technical assistance.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceSelf-branded

Wenzhou Nixi Fasteners Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤6.29h

About Our Factory & Business Background

AddressBuilding 8, Zhonggang Science and Technology Park, Yongxing Street, Longwan District, Wenzhou City, Zhejiang Province China, Wenzhou, Zhejiang, China

Plant Area600 square meters

Number of Employees13

Registered Capital5,000,000 RMB

Terms of PaymentLC, T/T

International Commercial Terms(Incoterms)FOB, CIF

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

Minimum Order Quantity10000

Supply Chain Partners90

Our Production Capability & Technical Expertise

Main ProductsFlat Washers,Spring Lock Washers,Tooth Lock Washers,Wave Washers,Cup Washers,Hex Bolts,Carriage Bolts,Flange Bolts,T-Bolts,Dowel Pins,Clevis Pins,Blind Rivets,Stud Bolts,Captive Screws,Welding Studs

Production Lines1

Production MachinesThread Rolling Machine, Packing Machine

QA/QC inspectors1 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers3 people

Traceability of Raw MaterialsNo

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2016-01-06

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff2

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:Do you offer OEM/ODM service?

Yes, we provide customized fastener solutions based on drawings or samples.

Q:What quality standards do your products meet?

All products comply with ISO, DIN, ANSI, and GB standards and are produced under ISO 9001 certified quality control.

Q:What documents do you provide for export?

We supply a complete set of export documents, including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, and other required certificates.

Q:How can I place an order?

Contact us by email or phone with your requirements. We'll send a quotation, and once confirmed, you can issue a Purchase Order (PO).

Q:Can I get samples before mass production?

Yes, free samples are available; shipping costs are borne by the buyer.