What's your Delivery Time?

Standard parts: 7-15days. Non-standard parts: 15-25days. We will make the delivery as soon as possible with the guarantee quality.

How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Which mode of transport would be better?

In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.

Black Oxide Unc Kep Nut / K Nut with External-Tooth Lock Washer

Name: Black Oxide Unc Kep Nut / K Nut with External-Tooth Lock Washer
Brand: Kunshan Hongyongsheng Precision Hardware Products Co., Ltd.
SKU: 2309120145

Jiangsu, ChinaKunshan Hongyongsheng Precision Hardware Products Co., Ltd.

US$0.01-0.10

10,000 Pieces

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

K Nut

Model NO.

HysLMW060

Connection

Threaded Connection

Head Style

Hex Serrated / Hexagon with Serrated Washer

Standard

DIN, ANSI, GB, JIS, GOST, BSW, ISO

Grade

Grade 4.8-12.9

Customized

Yes

Drawing

Yes

Application

Automotive, Machinery, Construction

Process

Stamping, CNC Machining, Forming, Heat Treatment

Product Type

Carbon Steel Hex Kep Nut/K Nut/Serrated Lock Nut

Service

OEM and ODM, Sample Available, MOQ 1000PCS

Material Grade

Carbon Steel, Grade 4.8/8.8/10.9/12.9

Surface Treatment

Black Oxide,Plain Finish

Key Features

Integrated Serrated Locking Teeth, Anti-Loosening

Tolerance Grade

ISO Standard, 6h/6g Thread

Quality Control

Salt Spray Test, ISO 9001, SGS, RoHS Compliant

Transport Package

Polybag+Export Carton, Polywood Pallet

Specification

Custom, Metric M3-M20, Inch 4#-5/16"

Trademark

HYS

Origin

China

HS Code

7318160000

Production Capacity

100ton/Month

Key features

Integrated Anti-Loosening Design: Features external serrated teeth for reliable vibration resistance without separate washers.

Wide Material Grade Options: Available in Carbon Steel grades 4.8, 8.8, 10.9, and 12.9 for varying strength needs.

Comprehensive Customization: Supports custom sizes, thread pitches, surface treatments, and drawing-based production.

Multiple Surface Treatments: Offers Black Oxide, Zinc Plated, Plain Finish, and custom coatings for corrosion resistance.

Strict Quality Certification: Compliant with ISO 9001, SGS, RoHS, and undergoes salt spray and hardness testing.

OEM & ODM Services: Full support for custom manufacturing, laser marking, and specialized packaging solutions.

Sample Availability: Samples provided for quality testing and verification prior to bulk order placement.

Versatile Application Scope: Ideal for automotive, machinery, construction, aerospace, and photovoltaic equipment.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Kunshan Hongyongsheng Precision Hardware Products Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: ShanghaiAverage Response Time: ≤0.88h

AI-Powered supplier vetting

SummaryKunshan Hongyongsheng Precision Hardware Products Co., Ltd. is a China-based factory established in 2016, with 25 employees and a business scope covering automotive parts, mechanical components, furniture parts, plastic products, metal materials, and mechanical equipment. It offers extensive customization and ODM services, reports new product development within the past year, and provides OEM services to well-known brands. Production-related evidence includes CNC and machining equipment, five quality inspectors, standardized finished-product inspection instructions, and peak/off-season lead times within 15 working days. Service procedures cover supplier assessment, corrective and preventive actions, and customer complaints, although overseas service infrastructure is absent. An SGS audit report is identified, but the provided data does not state a certification or a positive audit result. Financial information is present only as year labels, so financial strength cannot be assessed. Customer and brand...

Supplier typeThe supplier is identified as a factory and a limited company located in Kunshan, Suzhou, Jiangsu, China. It was established on March 10, 2016, and has 25 employees, indicating a relatively small manufacturing enterprise.

After-Sales capabilityThe supplier has written procedures and records for customer complaint handling, corrective and preventive actions, and service-capability assessment. However, it has no overseas warehouses, showrooms, agents or branches, has not participated in offline trade shows, and reports zero countries with overseas services.

R&D capabilityThe supplier reports that it had new products within the past year and provides ODM services. It does not have an available SDK, but SDK availability is not sufficient by itself to negate the stated product-development capability.

Production capacityThe supplier operates as a manufacturing factory covering automotive, mechanical, furniture, plastic, and related products. It lists CNC lathe, machining center, and screening-machine capabilities, employs five quality inspectors, follows standardized finished-product inspection instructions, and reports lead times within 15 working days in both peak and off-season.

Customization capabilityBoth the R&D and design-capability records identify customization from samples, customization from designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability, providing explicit evidence of broad customization support.

Product Q&A

Q:Why choose us?

To provide our customers with first-class services in the supply of quality fasteners minimizing costs. Our vision is to build successful relations with our partners and be their first choice as a fasteners supplier. Our mission is professional customer service, and innovation in technology. Further more, we do not only offer you fasteners with more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market sales suggestion for your refer

Q:How is quality ensured?

All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery. Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.

Q:If you can not find on our website the product you need how to do?

You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.

Q:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?

Yes, we can, we can provide high precision parts and make the parts as your drawing.

Q:How should I order and make payment?

By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance to be paid before shipment.