Grade 4.8 8.8 HDG Carbon Steel Stainless Steel DIN603 Carriage Bolts

• Customization: Available
• Material: Stainless Steel
• Type: Round Head
• Model NO.: DIN603
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, GB, BSW
• Grade: 8.8
• Application: Machinery, Chemical Industry, Building
• Finish: Color-Zinc Plated
• Finish 1: Mechanical Galvanizing
• Finish 2: Zp
• Finish 3: Nickel Palting
• Transport Package: We Can Follow Customer′s Request
• Specification: we can follow customer′s request
• Trademark: HQ
• Origin: Handan City
• HS Code: 7318160000

Product Description

       Product introduction

DIN 603 Carriage Bolt Product introduction **

The DIN 603 carriage bolt (also known as the square neck bolt) is a fastener with a unique anti-rotation design, specially developed for the reliable connection of wood, metal and composite materials. Its signature round head and square neck structure automatically locks during installation to prevent bolt rotation, ensuring quick installation and long-term stability, especially in situations requiring concealed fastening and resistance to dynamic loads.

** Core Features: **
1. ** Anti-turning square neck design **
A square neck is arranged under the bolt head, which is embedded into the pre-drilled hole or the material during installation, effectively preventing the bolt from rotating during fastening, enabling one-person operation and improving assembly efficiency.

2. ** Dome smooth head **
The semi-circular head design has no sharp edges, providing a beautiful appearance while avoiding the risk of scratches or hooks, suitable for furniture, outdoor facilities and other areas with high safety requirements.

3. ** High strength material is optional **
It is made of carbon steel (4.8 grade, 8.8 grade), stainless steel (A2/A4-50) or weathering steel, with tensile strength covering 400 MPa to 800 MPa, adapting to different load requirements.

4. ** Diverse surface treatment **
Optional electrogalvanizing, hot dip galvanizing, phosphating or dacromet coating to enhance corrosion resistance and extend service life in outdoor or humid environments.

** Application field: **
- ** Wooden construction ** : wooden house beam and column connection, floor fixing and fence installation.
- ** Agricultural and Transport equipment ** : metal frame assembly of trailers, cargo boxes, agricultural machinery.
- ** Public facilities ** : hidden fastening of benches, amusement equipment, bridge protection plate.
- ** Industrial manufacturing ** : Conveyor belt brackets, storage shelves, etc., need to prevent loose structural connections.

** Specifications: **
- ** Standard ** : DIN 603 (compatible with some ISO certified specifications).
- ** Size range ** : Nominal diameter M6 to M24, length 20mm to 300mm (support non-standard customization).
- ** Driving mode ** : Hexagon nut with standard wrench installation, easy to operate.

Summary of advantages: **
DIN 603 carriage bolts are ideal for joining wood and light metal structures due to their turnproof design, high compatibility and ease of installation. Whether it is the hidden works of home decoration or the vibration resistance needs of industrial equipment, high reliability can be achieved at a low cost and maintenance frequency can be reduced.

Product Parameters

 

ITEM NAME:	Grade 4.8 8.8 HDG Carbon Steel Stainless Steel DIN603 Carriage Bolts
MATERIAL:	Carbon steel, Alloy Steel, Stainless Steel, Brass
STANDARD:	GB / DIN / ASME/ANSI  / BSW
GRADE:	SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9;A2-70,A4-70,A4-80
SIZE:	1/4"-2 1/2",M4-M64
SIZE:	1/8" 1/4" 5/16" 3/8" 7/16" 1/2" 5/8" 3/4" 7/8" 1" 1-1/4" 1-1/2" 1-3/4" 2" 3" 4"
FINISH :	Plain,Black oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome,PTFE,Dacromet,Geomet,Magni,Zinc Nickel,Zinteck.

Detailed Photos

 

Company Profile

**Handan Haoqiang Fastener Manufacturing Co., Ltd.**

**Address:** C6-13, Shichuang Logistics Port, Yongnian District, Handan City, Hebei Province, China

Since its inception in 2005, Handan Haoqiang Fastener Manufacturing Co., Ltd. has distinguished itself as a premier manufacturer and exporter, specializing in high-quality fasteners. With over a decade of unrivaled production expertise and a global trade footprint since 2014, we have earned a formidable reputation for delivering impeccable, precision-engineered fastening solutions to clients on a global scale.

**Core Products:**
- An extensive array of nuts and bolts in diverse specifications
- High-strength bolts and nuts designed for demanding applications
- Customized fasteners expertly tailored to meet specific client requirements

**Compliance Standards:**
Our products are meticulously crafted to adhere to esteemed international standards, including:

- **DIN** (German Standard)

- **GB** (Chinese National Standard)

- **ANSI/ASTM** (American Standard)

- **BSW** (British Standard Whitworth)

- **JIS** (Japanese Industrial Standard)

Harnessing state-of-the-art manufacturing technology and rigorous quality control systems, we guarantee durability, superior performance, and compliance with the stringent demands of global industries. Our unwavering commitment to innovation and customer-centric excellence has allowed us to forge enduring partnerships across dynamic sectors such as construction, machinery, automotive, and energy.

At the core of Haoqiang Fastener lies a dedication to integrity, efficiency, and sustainability. Whether catering to domestic projects or navigating international exports, we are driven to surpass expectations with competitive pricing, prompt delivery, and outstanding after-sales support.

*Connect with us today to discuss your fastener needs and discover how our expertise can fortify your projects!*

Exhibition Display

 

Packaging & Shipping

PACKAGE : Secure your goods with our customized packaging options: 25kgs Box with Pallet, 25kgs woven bags, or 25kgs Gunny bags. We also offer packaging tailored to the customer's request, ensuring your products reach their destination safely and efficiently.

FAQ

**Product & Specifications**
Q: What standards do your fasteners comply with?*
A: Our products meet DIN (German), GB (China), ANSI/ASTM (USA), BSW (UK), and JIS (Japan) standards. Custom specifications are available upon request.

**Order & Payment**
*Q: How can I track my international order?*
A: A real-time tracking number will be emailed once your shipment is dispatched. For urgent inquiries, contact export customer service

**Shipping & Logistics**
*Q: What are your delivery options for overseas customers?*
A: We offer sea freight (FOB/CIF), air freight, and express courier (DHL/FedEx) with competitive rates. Delivery timelines vary by destination.

**Returns & Warranty**
*Q: What if I receive defective products?*
A: We provide a 12-month quality guarantee. Report issues within 7 days of receipt with photos/video, and we'll arrange replacements or refunds promptly.

**Technical Support**
*Q: Can you assist with material selection for extreme environments?*

A: Absolutely! Our engineering team offers free consultation on corrosion-resistant, high-temperature, or high-load solutions.