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.

Yes, for big orders, old customer and frequent customers, we give reasonable discounts.

How many screws can you produce per day?

We can produce nearly 200000 to 300000 pcs a day. If you are interested in any of our products, please do not hesitate to contact us for more details.

High-Strength K-Type Lock Nut with Serrated Washer Anti-Vibration Fastener

Name: High-Strength K-Type Lock Nut with Serrated Washer Anti-Vibration Fastener
Brand: Ningbo Oukailuo Hardware Co., Ltd.
SKU: 2284865005

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 / Stainless Steel 304/316

Shape of Head

Round

Model NO.

OKL-166

Surface Finishing

Zinc Plated

Certification

ISO, GS, RoHS, CE

Customized

Product Name

K-Type Nut

Keywords

Nut

Surface Finish

Zinc Plated (Carbon Steel) / Natural (Stainless St

Diameter Range

3.5mm - 6.0mm

Length Range

13mm - 100mm

Point Style

Sharp Piercing Point

Feature

Corrosion Resistant, Anti-Loosening, High Torque T

Application

Construction, Industrial, Furniture, Woodworking

Transport Package

Standard Packaging or Customized

Specification

Standard Specifications or Customized

Trademark

OUKAILUO

Origin

Zhejiang, China

HS Code

7318150000

Production Capacity

300000000PCS/Year

Key features

Integrated Anti-Loosening Design: Combines nut and serrated washer into one unit to prevent loosening under vibration and shock.

High Assembly Efficiency: Increases assembly efficiency by approx. 40% by eliminating separate washer handling and alignment issues.

Excellent Vibration Resistance: Maintains over 90% preload after 8 hours of high-frequency vibration testing due to elastic compensation.

Wide Material & Finish Options: Available in Carbon Steel, SS304, SS316 with zinc plating, black oxide, or Dacromet finishes.

Extended Service Life: Tensile pull-out strength exceeds 1200N with 50,000+ cyclic load fatigue testing validation.

100% Quality Inspection: Full-batch dimensional verification and ASTM B117 salt spray testing with certified mill test reports.

Customization Available: Supports customized product names, surface finishes, diameters, lengths, and point styles.

High Production Capacity: Daily production capacity of nearly 200,000 to 300,000 pieces for timely delivery.

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: ≤5.25h

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.