What is your delivery time?

Standard parts take 7-15 days. Non-standard parts take 15-25 days. We ensure delivery as soon as possible while guaranteeing quality.

How to custom-made (OEM/ODM)?

If you have a new product drawing or sample, please send it to us. We can custom-make the hardware as required and provide professional advice to optimize design and maximize performance.

Which mode of transport would be better?

Generally, since production is heavy, we advise delivery by sea. However, we respect your views on other transportation methods as well.

Heat Treated Heavy Duty Hex Flange Bolt

Name: Heat Treated Heavy Duty Hex Flange Bolt
Brand: Kunshan Hongyongsheng Precision Hardware Products Co., Ltd.
SKU: 2304881695

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

Hex Flange Bolt

Model NO.

HYSLLSS214

Connection

Common Bolt

Head Style

Hex Flange Head

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

8.8

Customized

Yes

Drawing

Yes

Application

Machinery,Chemical,Environmental,Building

Process

Hot Forging,CNC,Thread Cutting,Heat Treatment

Product Type

8.8 Grade Carbon Steel Hex Flange Bolt

Service

Free Samples, OEM & ODM Supported

Material Grade

Carbon Steel

Surface Treatment

Hot Galvanizing,Zinc Plated,Black Oxide

Key Features

Integrated Flange Head, 8.8 High Strength

Tolerance Grade

Standard Metric Thread Tolerance

Quality Control

100% Pre-Shipment Inspection

Port of Loading

Shanghai

MOQ

10,000 PCS

Transport Package

Plastic Bag, Carton, Pallet

Specification

Custom Sizes & Lengths

Trademark

HYS

Origin

China

HS Code

7318160000

Production Capacity

100ton/Month

Key features

8.8 High Strength Grade: Heat treated carbon steel with high tensile strength and fatigue resistance.

Integrated Flange Head: Increases bearing surface, reduces pressure, and prevents loosening during installation.

Full Customization Support: Customizable sizes, lengths, thread pitch, strength grades, and surface treatments.

Multiple Surface Treatments: Options include hot galvanizing, zinc plating, and black oxide for anti-corrosion.

100% Pre-Shipment Inspection: Strict quality control with full inspection and traceability system before delivery.

OEM & ODM Services: Professional engineering team provides design optimization and tailored solutions.

Global Standard Compliance: Compliant with DIN, ANSI, GB, JIS, GOST, and BSW standards.

Free Samples Available: Free samples provided for evaluation before placing bulk orders.

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: ≤1.50h

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?

We provide first-class services in quality fasteners supply, minimizing costs. Our vision is to build successful relations with partners, and our mission is professional customer service and innovation. We offer reasonable quality and price, along with market sales suggestions.

Q:How is quality ensured?

All processes strictly adhere to ISO9001:2008 procedures. We maintain strict quality control from production to delivery, supported by strong technology and experienced management teams familiar with modern quality concepts.

Q:If you cannot find the product you need on our website, how do you handle it?

You can send pictures, photos, or drawings via email for us to check availability. We develop new models monthly. Alternatively, you can send samples via DHL/TNT, and we will develop a custom model specifically for you.

Q:Can you strictly follow the tolerance on the drawing and meet high precision?

Yes, we can. We provide high precision parts and manufacture them exactly according to your drawings.

Q:How should I order and make payment?

Payment is by T/T. For samples, 100% payment is required with the order. For production, 30% deposit is paid before arrangement, and the balance is paid before shipment.