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-make (OEM/ODM)?

Send us new product drawings or samples, and we will custom-make the hardware as required. We also provide professional advice to optimize design and maximize performance.

Which mode of transport would be better?

Generally, sea freight is recommended as production items are heavy. However, we respect your views on other transportation methods.

Stainless Steel Hex Nut External Expansion Bolt

Name: Stainless Steel Hex Nut External Expansion Bolt
Brand: Kunshan Hongyongsheng Precision Hardware Products Co., Ltd.
SKU: 2304908395

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

Stainless Steel

Type

Expansion Bolt

Model NO.

HYSLLSS233

Connection

Expansion Fixed Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, GOST, BSW

Grade

8.8

Customized

Yes

Drawing

Yes

Application

Machinery,Chemical Industry,Environmental

Process

Cold Forging,CNC Machining

Product Type

8.8 Grade Stainless Steel Expansion Bolt

Service

Free Samples, OEM & ODM Supported

Material Grade

304/316 Stainless Steel

Surface Treatment

Plain,Zinc Plated,Hot Galvanized,Dacromet

Key Features

Expansion Sleeve,8.8 High Strength

Tolerance Grade

Standard Metric Thread Tolerance

Quality Control

100% Pre-Shipment Inspection,ISO9001 Certified

Port of Loading

Shanghai

MOQ

10,000 PCS

Transport Package

Carton, Wood Pallet

Specification

M3-M160, Custom Non-Standard Length

Trademark

HYS

Origin

China

HS Code

7318160000

Production Capacity

100ton/Month

Key features

High Strength Grade: 8.8 Grade stainless steel expansion bolt with excellent tensile strength.

Corrosion Resistant Material: Available in SS304 and SS316 for superior acid, alkali, and saltwater resistance.

Wide Size Range: Full metric series from M3 to M160 with custom non-standard lengths available.

Multiple Surface Treatments: Options include Plain, Zinc Plated, Hot Galvanized, and Dacromet coatings.

Customization Support: OEM/ODM services with custom sizes, lengths, coatings, and logo marking.

Strict Quality Control: 100% pre-shipment inspection including tensile, coating, and salt spray tests.

Multi-Standard Compliance: Certified to DIN, ANSI, GB, JIS, GOST, and BSW global standards.

Free Sample Service: Free sample testing available for new customers and large 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: ≤1.55h

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 while minimizing costs. Our vision is to build successful relations and be your first choice. We offer reasonable quality and price, plus 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 with strong technology support and experienced management.

Q:If you cannot find the product you need on your website, what should I do?

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

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

Yes, we can 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 with the order. For production, 30% deposit before arrangement and the balance before shipment.