Cold heading Service

DIN6914 Hex Bolts Manufacturers, Suppliers and Factory in China

DIN6914 hex bolts is a technical standard that specifies the dimensions and requirements for high-strength structural hexagon bolts with large widths across flats. These bolts are commonly used in applications where strong and secure connections are required, such as in construction, engineering, and heavy machinery.

DIN 6914 hex bolts are designed to provide high tensile strength, making them suitable for applications that involve heavy loads and structural integrity. These bolts have larger dimensions across the flat sides of the hexagon head compared to regular hex bolts. The larger head provides a larger contact area for distributing the load and prevents the bolt from sinking into the material. Typically made from alloy steel and can be further treated for enhanced strength and corrosion resistance. When using DIN 6914 hex bolts or any other fasteners, it’s essential to follow the specifications and guidelines provided by the standard and consult with professionals if needed to ensure the appropriate choice for your specific application.

Class10.9 High Strength Plain DIN6914 Hex Bolt
Hot dip galvanized DIN6914 High Strength Class10.9 Hex Bolts for steel structural


Product nameDIN6914 Hex Bolts
Head TypeLarge Hex Head
Manufacturing Processwire drawing, cold heading/hot forging, thread rolling, heat treatment, surface treatment
Surface treatmentBlack Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating
Application IndustryConstruction/Machinery/Automotive/Infrastructure/Electrical and Electronics/Furniture/Marine and Offshore

Composition for DIN6914 Bolt:

Material and heat treatmentChemical
composition limits
(cast analysis, %) a
10.9Carbon steel with additives (e.g. Boron or Mn
Carbon steel quenched and tempered0.250.550.0250.025
Carbon steel quenched and tempered0.200.550.0250.025

Dimension Chart of DIN6914 Bolt:

Thread DiameterM12M16M20M22M24M27M30M36
b max2328333437394250
b min2126313234374048
da max15.219.2242628323541
ds max12.716.720.8422.8424.8427.8430.8437
ds min11.315.319.1621.1623.1626.1629.1635
e min23.9129.5635.0339.5545.250.8555.3766.44
k max8.4510.7513.914.915.917.920.0524.05
k min7.559.2512.
r min1.
s max2227323641465060
s min21.1626.16313540454958.8

Manufacturing Quality control of DIN6914 hex bolts:

In a world where connections matter, Ningbo Teng Qi Fasteners is more than just a hex bolts supplier and manufacturer. We are architects of stability, builders of relationships, and champions of your success. From skyscrapers that reach for the sky to machines that power industries, our hex bolts form the backbone of progress. When you choose Ningbo Teng Qi Fasteners, you choose unwavering quality, exceptional service, and a partner who understands that every bolt holds a piece of your vision.

Control MethodDetail
Material Inspection:Verify the material's composition, heat treatment, and quality upon receipt. Conduct metallurgical analysis to ensure the material properties meet the standards.
Process Control:Implement strict process control measures for heat treatment, machining, threading, and any other manufacturing steps. Maintain consistent process parameters to ensure uniform quality.
Inspection Points:Introduce inspection points at various stages of manufacturing to check for defects, dimensions, and quality. Inspect threading, dimensions, surface finish, and other critical parameters.
Sampling and Testing:Regularly sample products for testing, such as tensile testing, hardness testing, and metallurgical analysis, to ensure they meet the required specifications.
Thread Inspection:Thoroughly inspect threading using proper thread gauges to ensure accurate dimensions and fit with mating components.
Traceability:Implement a traceability system to track each fasteners journey from raw material to final product. This aids in accountability and recalls if necessary.