BREAKING LOADS FOR BOLTS WITH REDUCED LOAD CAPACITY

Introduction


Bolts are essential components in many mechanical and structural applications. However, the shape and design of bolts can significantly affect their load capacity. Bolts with reduced sections, deep threads, or special geometries may have lower breaking loads compared to standard bolts. This document analyzes the mechanical characteristics of such bolts and provides guidance on how to choose and use these bolts effectively.

Breaking Loads for Bolts with Reduced Sections


Bolts with reduced sections have a smaller resistance area, which results in lower breaking loads. Tensile strength and hardness are key parameters for assessing the load capacity of these bolts.

Table: Breaking Loads for Bolts with Reduced Sections

Tipo di Bullone Materiale Diametro Nominale (mm) Area di Resistenza (mm²) Carico di Rottura (N)
Bullone a Sezione Ridotta 1 Acciaio al Carbonio 5 14.2 1200
Bullone a Sezione Ridotta 2 Acciaio Inossidabile 5 13.8 1100
Bullone a Sezione Ridotta 3 Lega di Alluminio 5 13.5 700
Bullone a Sezione Ridotta 4 Titanio 5 13.7 1400

Graph: Breaking Load as a Function of Resistance Area

The graph shows how the resistance area affects the breaking load of bolts with reduced sections.

Bolts with Deep Threads


Bolts with deep threads have a larger surface area, but the depth of the threads can weaken the bolt, reducing its breaking load.

Table: Breaking Loads for Bolts with Deep Threads

TYPE OF BOLT MATERIAL THREAD DEPTH (MM) BREAKING LOAD (N)
Deep Thread Bolt 1 Carbon Steel 2.0 1300
Deep Thread Bolt 2 Stainless Steel 2.2 1150
Deep Thread Bolt 3 Aluminum Alloy 1.8 750
Deep Thread Bolt 4 Titanium 2.1 1500

Graph: Breaking Load as a Function of Thread Depth

The graph illustrates how thread depth affects the breaking load of bolts.

Microstructure Images


The following image shows the microstructure of a stainless steel bolt with deep threads:

Conclusion


Bolts with special shapes and designs, which have reduced load capacities, present a unique challenge in mechanical engineering. However, with the correct selection of materials and treatments, it is possible to optimize the performance of these bolts for specific applications. Companies investing in high-quality bolts can ensure secure and durable fastening, reducing the risks of failure and increasing the reliability of their products.

For companies looking to improve the quality and efficiency of their production processes, collaborating with experienced suppliers is crucial. A competent supplier can offer technical advice on choosing the most suitable materials for each specific application. The right choice of bolt, combined with correct installation techniques, can make the difference between a reliable product and one prone to failure.

Autore: Alice Libardi 31 luglio 2025
Bolts are essential components in many mechanical and structural applications. However, the shape and design of bolts can significantly affect their load capacity. Bolts with reduced sections, deep threads, or special geometries may have lower breaking loads compared to standard bolts. This document analyzes the mechan
31 luglio 2025
I bulloni sono componenti essenziali in molte applicazioni meccaniche e strutturali. Tuttavia, la forma e il design dei bulloni possono influenzare significativamente la loro capacità di carico. Bulloni con sezioni ridotte, filettature profonde o geometrie speciali possono avere carichi di rottura inferiori rispetto ai
31 luglio 2025
The IS UNI EN ISO 898-1:2013 standard specifies the mechanical properties of metric threaded bolts and studs made of carbon steel and alloy steel. This standard covers a wide range of strength classes, determining the requirements for properties such as tensile strength, hardness, and resilience.
31 luglio 2025
La norma UNI EN ISO 898-1:2013 specifica le proprietà meccaniche di bulloni e viti prigioniere a filetto metrico realizzati in acciaio al carbonio e acciaio legato. Questa norma copre un'ampia gamma di classi di resistenza, determinando i requisiti per proprietà come la resistenza a trazione, la durezza e la resilienza
31 luglio 2025
The ISO metric system (International Organization for Standardization) is one of the most widely used measurement systems in the world, particularly in industrial and engineering applications. A fundamental part of the ISO system includes bolts and nuts, which are essential for assembling various mechanical components.
31 luglio 2025
Il sistema metrico ISO (Organizzazione Internazionale per la Standardizzazione) è uno dei sistemi di misurazione più utilizzati al mondo, in particolare nelle applicazioni industriali e ingegneristiche. Una parte fondamentale del sistema ISO include bulloni e dadi, che sono essenziali per l'assemblaggio di vari compone
31 luglio 2025
Milling is one of the most versatile techniques in chip removal mechanical processing, used to create flat surfaces, grooves, complex profiles, and pockets on a wide variety of materials. This process relies on the use of a rotating multi-cutting tool, called a milling cutter, which removes material from the workpiece
31 luglio 2025
La fresatura è una delle tecniche più versatili nella lavorazione meccanica per asportazione di truciolo, utilizzata per creare superfici piane, scanalature, profili complessi e cavità su una vasta gamma di materiali. Questo processo si basa sull'uso di un utensile rotante a più taglienti, chiamato fresa, che rimuove m
31 luglio 2025
Drilling is one of the fundamental techniques in machining by chip removal, used to create cylindrical holes in solid materials. This process is essential in many industrial applications, as holes are required for component assembly, fluid passage creation, and the insertion of fasteners. Drilling can be performed on v
31 luglio 2025
La foratura è una delle tecniche fondamentali nella lavorazione per asportazione di truciolo, utilizzata per creare fori cilindrici in materiali solidi. Questo processo è essenziale in molte applicazioni industriali, poiché i fori sono necessari per l'assemblaggio di componenti, la creazione di passaggi per fluidi e l'
Show More