What is your delivery time?

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

How to custom-made (OEM/ODM)?

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

Which mode of transport would be better?

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

Frame Braced High Quality Heavy Duty Construction Round Head Bolt

Name: Frame Braced High Quality Heavy Duty Construction Round Head Bolt
Brand: Kunshan Hongyongsheng Precision Hardware Products Co., Ltd.
SKU: 2311718185

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

Carriage Bolt

Model NO.

HYSLLSS0019

Connection

Common Bolt

Head Style

Round

Standard

DIN

Grade

8.8

Customized

Yes

Drawing

Yes

Application

Machinery, Construction, Furniture

Process

Cold Forging, CNC Machining, Thread Cutting

Product Type

DIN603 Carbon Steel Carriage Bolt

Service

Samples Freely Supplied, OEM & ODM Supported

Material Grade

8.8 Carbon Steel

Surface Treatment

Galvanized, Black Oxide

Key Features

Anti-Slip Square Neck, Stable Clamping

Tolerance Grade

Standard Metric Thread Tolerance

Quality Control

100% Pre-Shipment Inspection, Mtr, RoHS

Transport Package

Small Pack+Carton+Pallet

Specification

M12-M36 Customized

Trademark

HYS

Origin

China

HS Code

7318160000

Production Capacity

100ton/Month

Key features

High Tensile Strength: 8.8 grade carbon steel ensures heavy-duty load capacity and durability.

Anti-Slip Design: Square neck prevents rotation and provides stable clamping force.

Customizable Sizes: Thread sizes M12-M36 and lengths can be customized to requirements.

Dual Surface Options: Available in Galvanized and Black Oxide finishes for rust resistance.

OEM & ODM Support: Full customization services including drawing and sample-based production.

Strict Quality Control: 100% pre-shipment inspection with complete MTR material test reports.

Free Samples: Samples are freely supplied for customer evaluation and testing.

Precision Manufacturing: Produced via cold forging, CNC machining, and thread rolling processes.

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: ≤0.89h

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. We wish 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. We offer fasteners with reasonable quality and price, and provide market sales suggestions for your reference.

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 has strong technology support and a group of managers familiar with product quality and modern management concepts.

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

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

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

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

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% is paid as a deposit by T/T before production arrangement, and the balance is paid before shipment.