ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

Product Details
Customization: Available
Material: Steel (Carbon Steel, Alloy Steel)
Type: Carriage Bolt Head
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  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
  • ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt
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  • Overview
  • Detailed Photos & Description
  • Product Parameters
  • Company Profile
  • Packaging & Shipping
  • Laboratories
  • Certifications
  • Our Advantages
  • FAQ
Overview

Basic Info.

Model NO.
CB-5
Connection
Common Bolt
Head Style
Round
Standard
DIN, ANSI, GB, JIS, BSW, GOST
Grade
12.9
Application
Machinery, Chemical Industry, Environmental, Building, Construction,Automotive, Industrial .
Finish
Galvanized
Thread
Unc
Surface
Metallic
Surface Treatment
Galvanized
Length Range
10mm – 200mm (Custom Available)
Width Range
5mm-60mm (Can Be Customized)
Tensile Strength
Based on Grade (e.g., 4.8 = 450MPa-600MPa)
Working Temperature
20°c-100°c
Color
Silver - Gray (Galvanized)
Connection Type
Mechanical Fastening, Removal.
Quality Control
100% Inspected; Mill Test & Certificate Availabl
Condition
New
Certification
ISO9001,SGS,Taf
Packaging
Bulk Packing or Small Box Packing or as Required
Company Type
Manufacturer/Factory and Trader
Country of Origin
Ningbo, Zhejiang, China.
Transport Package
Bulk Packing, Small Box Packing or as Per Request
Specification
M6*12-M27*200
Trademark
HONGSTEEL OR CUSTOMIZABLE
Origin
China
HS Code
7318150000
Production Capacity
500tons Per Year

Packaging & Delivery

Package Size
30.00cm * 25.00cm * 12.00cm
Package Gross Weight
25.000kg

Product Description

 
 

Detailed Photos & Description

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt 
ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

 

Description

This round headed carriage bolt features a smooth, domed head with a square neck beneath the head that prevents rotation during installation. Typically made from galvanized carbon or alloy steel, this bolt provides excellent resistance to corrosion and wear. It is designed for secure fastening in wood, metal, and other materials, commonly used in furniture assembly, construction, and industrial machinery.

Specification Table

Attribute Details
Material Carbon Steel / Alloy Steel
Finish Galvanized
Head Style Round Head
Thread Type UNC (Unified National Coarse)
Length Range 10mm - 200mm (customizable)
Diameter Range M6 - M27 (customizable)
Tensile Strength Grade 4.8 (450-600 MPa)
Working Temperature -20°C to 100°C
Surface Treatment Hot-dip or Electro Galvanized
Connection Type Mechanical Fastening
Quality Control 100% Inspection; Mill Test Certificate Available
Certification ISO9001, SGS, TAF
Origin Ningbo, Zhejiang, China

Applications

  • Wooden furniture assembly for secure joints

  • Construction industry for timber framing and scaffolding

  • Industrial machinery fastening requiring vibration resistance

  • Agricultural equipment assembly

  • Outdoor structures where corrosion resistance is essential

  • Automotive chassis and body fastening

Key Advantages

  • Corrosion Resistance: Galvanized finish protects against rust and extends bolt life in humid or outdoor environments

  • Anti-Rotation Square Neck: Prevents bolt spinning during tightening, simplifying installation

  • Versatile Sizes: Wide length and diameter options allow custom fitting for various projects

  • High Tensile Strength: Grade 4.8 ensures reliable fastening under moderate mechanical stress

  • Consistent Quality: Strict QC and certifications ensure product reliability and performance

  • Easy Installation: Smooth rounded head provides a clean, finished appearance without sharp edges

Product Parameters

Diameter (mm) Length (mm) Thread Pitch (mm) Head Diameter (mm) Head Height (mm)
M6 12-200 1.0 ~10 ~4.0
M8 16-200 1.25 ~13 ~5.0
M10 20-200 1.5 ~16 ~6.4
M12 25-200 1.75 ~18 ~7.5
M16 30-200 2.0 ~24 ~9.0
M20 40-200 2.5 ~30 ~12.0
M24 50-200 3.0 ~36 ~14.0
M27 60-200 3.0 ~41 ~16.0
 

Contact Us

HONGSTEEL offers competitive pricing, negotiable quotes, and full support for samples or drawings. We provide OEM & ODM solutions to fit your unique project requirements. Let's build efficient pneumatic systems together!

Company Profile


ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

Jiaxing Hongsteel Trading Co., Ltd., in partnership with Ningbo Hongsteel Machinery Co., Ltd., proudly stands as a beacon of excellence in advanced manufacturing and international trade under the prestigious name "Hongsteel". With an illustrious record spanning over 16 years, we have carved a niche in the global market by consistently delivering precision-engineered components and offering unbeatable service worldwide.

As a leading force in both manufacturing and trading, we at Hongsteel specialize in crafting non-standard manufactured parts, fasteners, construction machinery components, electric tool parts, and automotive components, among others. Our commitment to excellence extends to providing fully customized solutions that cater to each client's specific needs, ensuring their utmost satisfaction.

Empowered by a team of highly skilled technicians and cutting-edge production equipment, we at Hongsteel guarantee superior efficiency, rigorous quality control, and unwavering product performance at every phase of production. Our state-of-the-art facilities boast certifications like ISO9001, ISO 17025, and SGS, alongside laboratory testing accreditations, affirming our adherence to international quality standards.

At Hongsteel, our ethos revolves around the core values of "quality first, service foremost, and continuous improvement and innovation" to meet and exceed customer expectations. Our relentless pursuit of excellence is encapsulated in our quality objectives: "zero defects, zero complaints." We warmly invite your inquiries and eagerly anticipate forging long-lasting, prosperous partnerships with clients worldwide.

Packaging & Shipping

 

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

Laboratories

 

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

Certifications

 

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

Our Advantages

ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt


 

FAQ


ASTM A307/ DIN307 ASTM A307 Round Headed Galvanized Finish Carriage Bolt

 

 

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