Carriage Bolts - Corrosion-Resistant Stainless Steel & Carbon Steel Fasteners for Bridges

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Product Description

📊 Basic Information
Molding Technics:
Cold Forging Part
Application:
Machinery Parts
Machining:
CNC Machining
Material:
Stainless Steel and Aluminum for Optional
Surface Treatment:
Polishing and Oiling, Electroplating, Zinc Plating
Forging Tolerance:
+/-0.2mm
Standard:
DIN
Certification:
CE
Quality Control:
100% Inspection
Service:
Customized OEM ODM CNC Machining
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📝 Product Specifications
FeatureDetails
Materialscarbon steel, Alloy steel, stainless steel, aluminum, bronze, brass, etc.
SurfacePrimary Color / Custom
Weight0.1 - 10,000kg
ProcessesCold Forging
TypeSmall Head & Large Head Carriage Bolt
SizeM3-M12 (Customized Available)
ApplicationMachinery, Chemical Industry, Environmental, etc.
Product Display
🔍 Product Overview
Bolt Detail

Carriage Bolt, also known as a Round Head Square Neck Bolt, is a specialized type of fastener designed for applications where installation from only one side is possible. It features a smooth, domed head and a distinctive square neck just beneath it. This unique design allows the bolt to be inserted into a pre-drilled hole, where the square neck locks into the material, preventing the bolt from rotating when the nut is tightened.

It is ideal for securing structures like wooden decks, fences, or machinery frames, especially where access to the back of the joint is limited.
Application 1
Application 2
🏭 Manufacturing Capabilities
Factory Overview
  • Source Factory + Ready Stock: Full inventory of connecting clevises and yokes across various models.
  • Fast Delivery: 10-day shipment guarantee exclusively for in-stock connecting parts.
  • Flexible Custom Expertise: Specialized in tailored solutions, accepting client drawings to customize materials, dimensions, and tolerances.
  • Advanced Machinery: Equipped with over 60 premium machines, including CNC machining centers, CNC lathes, and 400T-2500T double-disk friction forging presses.
  • Strict QA Assurance: 100% in-production inspection plus international standard post-warehousing sampling.
Product Range 1
Product Range 2
📦 Packaging & Quality
Process Detail
Quality Certificate
Service Flow
Shipping Logistics
❓ Frequently Asked Questions
How do you ensure product quality?
We strictly select the best raw materials and conduct 100% in-production inspections. All finished products undergo final QC testing according to international standards before shipping.
What is the typical delivery timeframe?
For stocked items like clevis forks (M6-M24), we offer fast delivery within 7-10 days. Custom CNC precision parts typically take 40-60 days, while hot/cold forging parts require 40-70 days.
Can you provide customized products?
Yes, we specialize in OEM/ODM services. We can customize materials, dimensions, and tolerances based on your specific technical drawings and requirements.
What materials are available for carriage bolts?
We work with a wide range of materials including carbon steel, alloy steel, stainless steel, aluminum, bronze, and brass to suit different industrial needs.
What are the common surface treatments offered?
Common treatments include polishing, oiling, electroplating, and zinc plating. We can apply different finishes depending on the corrosion resistance required for your application.
Do you accept small-batch sample orders?
Yes, we accept sample orders to allow clients to verify the quality and precision of our manufacturing before moving to mass production.

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