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ISO 4014 Bolt Specifications: A Quick Overview of Weight, Size, and Standards

29 Jul 2025
When dealing with fasteners, understanding ISO bolt standards is crucial for selecting the right parts for your projects. Many engineers and procurement professionals find the difference between ISO 4014 and DIN 931 confusing, but understanding these specifications can really influence your project's success.
 
To read bolt charts effectively, begin by grasping the basic structure of the ISO 4014 Bolt Dimensions Chart. The chart shows thread pitches, head dimensions, and length specifications in an organised manner. Each row represents a specific bolt diameter, and the columns display the measurements for head height, head diameter, and thread length.
 
To interpret these charts, just cross-reference the bolt diameter (M6, M8, M10, etc.) with your specifications. An M12 bolt has its own unique head dimensions and thread features, which are quite different from those of an M16 bolt, even if they’re the same length.
 
ISO 4014 Applications
 
ISO 4014 bolts are widely used in various industries due to their standard specifications and dependable performance. In construction projects, these bolts secure structural steel connections, ensuring that torque values and load-bearing capacity are precisely met. The automotive industry depends on ISO 4014 specifications for engine assemblies and chassis parts.
 
Manufacturing facilities use these bolts for heavy machinery installations because their standardised dimensions guarantee compatibility with various equipment brands. 
 
The aerospace industry uses BigboltNut’s ISO 4014 standards for non-critical applications, focusing on weight and dimensional accuracy.
 
Weight Table Explained
 
Knowing how to calculate bolt weight is crucial for handling big projects or shipping needs. The weight table is directly related to the density of the material and its dimensions. Steel bolts that meet ISO 4014 standards, usually weigh more than those made of aluminium, but they offer better strength.
 
Weight calculations include the head volume, threaded part, and total length. Knowing exact weights is crucial for logistics planning and cost estimation in procurement. An M10x50 ISO 4014 bolt typically weighs between 15 and 18 grams, depending on the material grade and surface treatment.
 
ISO 4014 Bolt Applications by Industry
 
Various industries utilise ISO-4014 bolts to meet their specific performance requirements. Marine applications gain from corrosion resistance when matched with the right coatings.  Infrastructure projects rely on the load-bearing strength required for building bridges and undertaking heavy civil engineering tasks.
 
At BigboltNut, we ensure standardisation so that replacement parts are easily accessible, reducing maintenance downtime and keeping inventory costs low across various industrial settings.
 
Download the ISO 4014 weight chart PDF to access detailed specifications and make informed choices for your upcoming project.
 
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