What are the available grades for the fasteners?

We offer Grades 4.8, 8.8, 10.9, and 12.9.

Which payment terms do you accept?

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

What is the standard delivery time?

Normal delivery time is 20-25 days.

Hex and Round Head Coupling Nuts

Name: Hex and Round Head Coupling Nuts
Brand: Ningbo Yongbiao Fastener Co., Ltd
SKU: 2077912252

Zhejiang, ChinaNingbo Yongbiao Fastener Co., Ltd

US$0.11-0.30

10,000 Pieces

Sample price:US$0.30/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Round and Hexagon

Model NO.

DIN6334

Connection

Common Bolt

Head Style

Round and Hexagon

Standard

DIN, ANSI, GB, JIS, GOST

Grade

6.8

Delivery

7-20days

Pay Term

Tt 30% Deposit

Certificate

ISO9001

Trade Term

EXW,Fob,CIF,DDP,DDU

Transport Package

Carton Boxes

Specification

m2-m10

Trademark

Origin

China

HS Code

7318160000

Production Capacity

500ton/Month

Key features

Wide Material Selection: Available in Stainless Steel, Carbon Steel, and Copper.

Multiple Grade Options: Offers Grades 4.8, 8.8, 10.9, and 12.9.

Extensive Surface Finishes: Includes Natural, Black, Zinc-plated, Nickel, Dacromet, and Hot-dip Galvanized.

Fast Urgent Delivery: Urgent orders delivered in 7-15 days.

Same-Day Spot Goods: Spot goods delivered to warehouse on the same day.

OEM and ODM Services: Customization available from samples and designs.

Flexible Payment Terms: Supports LC, T/T, D/P, PayPal, and Western Union.

Global Trade Terms: Accepts FOB, CIF, CFR, EXW, and DDP.

Company profile

Importers and ExportersFast DeliveryQuality AssuranceProduction Process Visualization

Ningbo Yongbiao Fastener 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 CertifiedExport Year: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.71h

AI-Powered supplier vetting

SummaryThe supplier is described as a medium-sized fastener manufacturer integrating R&D, production, and sales, with more than 50 employees, over 50 production machines, more than 10 testing machines, and four production lines. It provides OEM services for well-known brands and supports customization from samples and designs. Quality and service-management procedures are documented and followed, including finished-product inspection, supplier assessment, corrective and preventive action, and complaint handling. However, no SDK is available, and no overseas warehouses, showrooms, agents, branches, or offline trade-show participation are reported. Overseas service coverage is recorded as zero countries, while export-trade experience is represented by three experienced staff. Production quantity reconciliation is not continuously performed for every batch or production run. Financial records are identified for 2021–2023, but the provided information does not establish financial strength.

Supplier typeThe supplier operates as a fastener manufacturing enterprise integrating R&D, production, and sales. Its stated business scope also includes wholesale, motorcycle and bicycle parts, wire and cable management, instruments, pumps, household-appliance parts, and metal materials, while its primary market is listed as domestic.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent, branch, or offline trade-show capability, and overseas service coverage is recorded as zero countries, limiting evidence of strong international after-sales support.

Production capacityThe supplier reports four production lines, more than 50 production machines, more than 10 testing machines, over 50 employees, and screw output of 4,000 tons. Finished-product inspection instructions are uniformly followed, but continuous quantity reconciliation for each batch or production run is not performed.

Customization capabilityThe supplier explicitly supports customization from samples and designs and provides OEM services for well-known brands. These capabilities directly support customer-specific product development and manufacturing.