What are the available screw lengths?

Screw lengths are available from 3mm to 110mm, accommodating different assembly depths and requirements.

What certifications do you have?

The company is certified by ISO9001 (Moody International) and ISO9001 (CQC), ensuring quality and reliability.

Countersunk Head for High-Strength Applications

Name: Custom 8.8 Grade Black Phosphate Knurled Neck Weld Screw with Flat/Round/ Countersunk Head for High-Strength Applications
Brand: Xiamen Changchun Import & Export Co., Ltd.
SKU: 2149433985

Fujian, ChinaXiamen Changchun Import & Export Co., Ltd.

US$0.044

5,000-9,999 Pieces

US$0.033

10,000-99,999 Pieces

US$0.022

100,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

824

Groove

Special Shape

Connection

Hinged Bolts

Head Style

Round

Standard

DIN, GB, ANSI, JIS

Grade

8.8

Custom

Yes

Drive

Hand Twist

Screw Diameter

8mm

Surface

Galvanized

Screw Length

3mm-110mm Available

After-Sales Service

Warranty

Warranty Period

Three Years

Authentication

ISO9001

Transport Package

General Export Package/Require to Customer

Specification

M2-M12

Trademark

Origin

China

HS Code

7318150000

Production Capacity

800 Tons/Month

Key features

High-Strength 8.8 Grade: Carbon steel construction ensures high tensile strength for demanding applications.

Customizable Dimensions: Screw length available from 3mm to 110mm to fit specific assembly needs.

Versatile Head Styles: Options include Flat, Round, and Countersunk heads for various installation types.

Robust Corrosion Resistance: Galvanized and black phosphate finishes protect against harsh environments.

3-Year Warranty: Comprehensive warranty coverage for peace of mind and quality assurance.

ISO9001 Certified: Manufacturing process strictly controlled and certified by international standards.

OEM/ODM Support: Customized services available for non-standard and specific customer requirements.

Fast Delivery Options: Air transport available for urgent orders with 1-3 business day turnaround.

Company profile

Xiamen Changchun Import & Export Co., Ltd.

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2017-05-19Nearest Port: xiamenAverage Response Time: ≤1.21hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryXiamen Changchun Import & Export Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory. It produces high-strength and construction fasteners, including bolts, nuts, screws, and non-standard fasteners, and reports more than ten production lines and monthly capacity of 1,000 tons. The supplier serves broad international markets, with exports representing 90% of total sales and self-operated import/export rights. ISO 9000, ISO 9001, and ISO 14001 certifications are reported, alongside quality-control procedures and testing equipment. The company states that it provides customized services and has more than ten years of screw-manufacturing experience, but the slices provide limited independently verifiable information on after-sales performance, financial strength, innovation outputs, or named customer cases.

Supplier typeThe supplier is explicitly identified as both a trading company and manufacturer/factory. Its stated business focuses on producing high-strength and construction fasteners, while its product keywords include bolts, nuts, screws, CNC parts, and related hardware.

CertificationsThe supplier reports ISO 9000, ISO 9001, and ISO 14001 certifications, and specifically states certification by ISO9001 through Moody International and CQC. It also describes documented process controls from raw-material processing through production, supported by quality inspectors and testing equipment.

Production capacityThe supplier reports monthly production capacity of 1,000 tons, more than ten production lines, and over ten years of screw-manufacturing experience. Its quality system includes process controls, inspectors, and testing equipment, indicating established production infrastructure for fasteners.

Customization capabilityThe supplier explicitly states that it provides customized service and produces non-standard fasteners. Its listed capabilities cover multiple fastener types and CNC machining-related products, supporting product customization, although specific customization limits and engineering workflows are not described.

Product Q&A

Q:What is the product range?

Our product range includes screws, nuts, knobs, bolts, washers, rivets, anchors, and CNC parts. We strictly implement various quality standards like GB, ISO, DIN, JIS, AISI, NFE, and BSW. Non-standard products are also accepted.

Q:Are you a trading company or a manufacturer?

We are an Industry & Trade Company.

Q:Why should I choose you and what are your advantages?

We are a professional manufacturer with 9 years of production and management experience in the fastener field. We provide good solutions in production design, process, packaging, and after-sale service. Customer satisfaction is our sole pursuit.

Q:Which industry fields are your products suitable for?

Our products are widely used in machine assembling, electronics, constructional engineering, furniture, and cabinets.

Q:What is the warranty period?

We provide a three-year warranty period for our products.