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Yes sure free sampls will be provided.

China Factory Hexagon Coupling Nuts DIN6334 M12 Carbon Steel Long Hex Square Round Coupling Nut

Name: China Factory Hexagon Coupling Nuts DIN6334 M12 Carbon Steel Long Hex Square Round Coupling Nut
Brand: Jiaxing Newscrew Fastener Co., Ltd.
SKU: 1909704951

Jiangsu, ChinaJiaxing Newscrew Fastener Co., Ltd.

US$0.10-1.00

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

DIN6334

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

12.9

Packing

Bulk

Packing 2

Small Box

Packing 3

Plastic Bucket

Finish

Zinc Plated

Finish 2

HDG

Finish 3

Black Oxide

Material 1

Q195

Material 2

Q235

Material 3

35K

Material 4

45K

Delivery Time

20 to 60 Days

Transport Package

OEM

Specification

M3-M64

Trademark

SECON

Origin

China

HS Code

7318150000

Production Capacity

8000 Tons/Year

Key features

Diverse Material Options: Available in Carbon Steel, B7, SS304, SS316, Q195, Q235, 35K, 45K.

Multiple Grade Standards: Offers grades 4.8, 8.8, 10.9, 12.9, A2-70, A4-70 for various strength needs.

Wide Size Range: Sizes available from M3 to M64 to fit diverse application requirements.

Comprehensive Finish Options: Zinc Plated, Black Oxide, HDG, and other finishes available upon request.

Flexible Customization: Full customization, minor customization, and customization from samples or designs.

ISO9001 Certified Quality: Factory passed ISO9001 quality management system certification.

Free Sample Availability: Free samples are provided for customer evaluation and testing.

Global Market Experience: Products exported to over 40 countries including US, Europe, and South America.

Company profile

High Repeat Buyers ChoiceFast DeliveryImporters and ExportersExhibition Experience

Jiaxing Newscrew Fastener Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai Port; Ningbo PortAverage Response Time: ≤5.29h

AI-Powered supplier vetting

SummaryThe supplier is a limited company producing fasteners and related components, including threaded rods, bolts, nuts, screws, washers, brackets, and end connectors. It reports substantial stated annual production volumes and has invested in cold-heading, threading, galvanizing, heat-treatment, and automated conveyor equipment. It supports extensive customization and 3D software design services, but reports no new products in the past year, no SDK, and no status as a professional technical supplier. Service procedures for corrective actions and complaints are documented and followed, while service assessment procedures lack records. The supplier has participated in Hannover Messe 2025 but has no overseas showroom, agents, branches, or overseas service locations. No certifications, customer cases, or verified financial-credit information are provided.

Supplier typeThe supplier is identified as a limited company with five employees and no parent-group affiliation. Its product scope is centered on fasteners and related hardware, including bolts, nuts, screws, brackets, and end connectors, indicating a specialized product manufacturer rather than a diversified corporate group.

After-Sales capabilityThe supplier states that it provides a strong after-sales guarantee, and it has clear, followed procedures for corrective and preventive actions and customer complaints. However, it lacks overseas showrooms, agents, branches, and overseas service locations; its general service-assessment procedure exists but has no records.

R&D capabilityThe supplier provides 3D software design and ODM services, but reports no new products in the past year, no available SDK, and only one year of total R&D-engineer experience. It also identifies itself as not being a professional technical supplier, so innovation capability is mixed and not strongly evidenced.

Production capacityThe supplier reports annual capacities of 9,000 tons of threaded rods, 2,500 tons of bolts, and 3,000 tons each of nuts, screws, and washers. It has 60 cold-heading and threading machines, two galvanizing lines, two heat-treatment lines, and automated conveyor belts; reported lead time is one month in both peak and off-seasons, supporting a positive production-capability assessment.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and it provides 3D software design services. These statements directly support broad customization capability.