What are your terms of payment?

We can accept T/T, L/C for general Paypal and Western Union for small orders or sample orders.

What is your packing?

Our packing is 15-25 kg for one carton,36 or 48 pcs cartons for one pallet. One pallet is about 900-960 kg. We can make the customer's logo on the cartons. Or we customized cartons according to customers' requests.

Can we print our own logo?

Yes, we can make it according to your request.

White Zinc Plated Extension Hex Long Coupling Nut for Studs and Bolts

Name: White Zinc Plated Extension Hex Long Coupling Nut for Studs and Bolts
Brand: Ningbo Oukailuo Hardware Co., Ltd.
SKU: 2294425045

Zhejiang, ChinaNingbo Oukailuo Hardware Co., Ltd.

US$0.005-5.00

50,000 Pieces

Product specifications

Specification

Sample price:US$0.50/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

OKL-S131

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Product Name

Hex Long Coupling Nut

Keywords

Coupling Nut

Thread Type

Machine Thread (Metric)

Surface Finish

Zinc Plated (Clear/Blue/Yellow), HDG,Black Oxide

Size Range

Customizable (Thread: M3-M30; Length: 10mm-100

Style

Long Hex Coupling Nut

Features

Corrosion Resistant, Anti-Loosening, High Torque T

Compliance

DIN, ISO, ANSI/ASME, JIS,Custom

Applications

Automotive, Machinery, Construction, Electronics,

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

OUKAILUO

Origin

Zhejiang, China

HS Code

7318160000

Production Capacity

300000000PCS/Year

Key features

High-Strength Carbon Steel: Made from premium carbon steel (Grade 4.8/8.8/10.9) for reliable durability.

Corrosion Resistant Finish: Bright zinc plating or HDG options provide basic corrosion resistance.

Secure Thread Engagement: Extended hex body design ensures strong connection between threaded rods.

Customizable Sizes: Thread sizes M3-M30 and lengths 10mm-100mm are available for customization.

Versatile Applications: Ideal for construction, scaffolding, machinery, and industrial use.

Precision Internal Threads: Uniform, precision-rolled threads ensure smooth mating with standard bolts.

Standard Hex Profile: Six-sided design allows easy installation with standard wrenches and sockets.

OEM/ODM Service: Supports customization from samples with dedicated R&D engineers.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceODM Services

Ningbo Oukailuo Hardware Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 14 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤3.56h

AI-Powered supplier vetting

SummaryThe supplier is a professional integrated enterprise with a strong focus on quality, customization, and customer satisfaction. They manage the entire value chain from R&D to after-sales service but lack overseas infrastructure and certain sustainable development practices. Financial data is available, but no specific certification information is provided.

Supplier typeThe supplier is an integrated enterprise with capabilities in R&D, production, and sales, strategically located in Ningbo for logistical advantages.

After-Sales capabilityThe supplier offers comprehensive after-sales services as part of their integrated approach.

R&D capabilityThe supplier has developed new products in the past year and offers ODM services, indicating strong innovation capabilities.

Production capacityThe supplier has comprehensive production capabilities, including OEM services for well-known brands.

Customization capabilityThey offer customization from samples and have ODM services, showing flexibility and capability in meeting custom requirements.

Product Q&A

Q:How about your price?

High-quality products at a reasonable price. Please give me an inquiry, and I will quote you a price for you to refer to at once.

Q:How do you control your quality?

We have our in-house QC daily and advanced optical inspection equipment. You could hire a third party for random inspection.

Q:Could you provide free samples?

For our regular products, we offer free samples. For customized screws, bolts, tooling, and moulding, charges are needed. All free samples do not including its courier charge.

Q:Do you accept small orders?

Sure, we can accept any orders. We keep lots of stock for ALL STAINLESS STEEL FASTENERS and CARBON STEEL FASTENERS, like pan head screws, flat head screws, Phillips screws,torx screws, hex screws, etc.

Q:How about your delivery time?

Generally speaking, if the goods are in stock, we can deliver them within 2-5 days. If the quantity is 1-2 containers, we can give you 25-35 days. If the quantity is more than 2 containers and you are very urgent, we can let the factory prioritize producing your goods.