DIN 603 Carriage Bolt | Round Head Square Neck Bolt | 4.8 8.8 A2 Stainless Steel

1. Product Overview

We are glad to release our brand-new full range of DIN 603 Round Head Square Neck Carriage Bolts.DIN 603 carriage bolt features round dome head and square neck design, which can lock itself into the hole without tools during installation, effectively preventing rotation. It is widely used in furniture assembly, steel frame connection, guardrail, container, wooden structure and general mechanical assembly.

All products strictly comply with DIN 603 standard, with precise size, smooth surface and stable mechanical performance, fully matching global customer procurement and engineering installation needs.

2. Core Features of DIN 603 Carriage Bolts

Round smooth head, no sharp edges, safe and beautiful appearance

Square neck anti-rotation design, easy one-person installation

Good toughness and bending resistance, not easy to deform

Complete specifications from M5 to M16, various lengths in stock

Multiple materials and surface finishes for different environments

Perfect matching with DIN 934 hex nuts and flat washers

3. Material & Grade Specification Table

4. Main Application Scenarios

Wooden structure building and timber frame connection

Highway guardrail, fence and railing installation

Logistics container, shelf and storage rack assembly

Furniture hardware, aluminum alloy frame connection

Municipal facilities, mechanical equipment fixed connection

5. Why Choose Our DIN 603 Carriage Bolts

Adopt high-quality Q235 / carbon steel / 304 stainless steel raw material

Strict mold making, uniform round head and standard square neck size

Full batch inspection on dimension, hardness and surface

Large stock of regular sizes, support small trial order and bulk order

Custom length, custom packaging and OEM service available

Stable export to Europe, Southeast Asia, Middle East and Australia

6. Conclusion

The official launch of DIN 603 carriage bolts enriches our non-standard and special-shaped fastener line. With stable quality, complete specifications and easy installation advantages, it becomes the preferred fastener for furniture, guardrail and steel structure projects.

We will continue launching different standard fastener models to support global buyers with one-stop purchasing service.