Threaded bolts
The manufacture of threaded bolts at mbo Osswald
Threaded bolts are among the essential linking elements in mechanical and plant engineering as well as in many other technical sectors. They typically consist of a cylindrical stud body with a continuous external thread and are used to create secure, removable connections between components using nuts or other fastening solutions. What sets them apart: threaded bolts enable highly loadable, yet flexibly maintainable and reusable connections in both static and dynamically loaded constructions.
At mbo Osswald we manufacture bespoke threaded bolts according to your samples, drawings or technical data - precisely tailored to your intended use and requirements. To this end we rely on advanced CNC and automated turning technology, which allows us to produce large quantities as reliably as demanding special solutions for specialist applications and prototypes. This means you benefit on every order from precise execution, optimal material selection and maximum cost-efficiency.
Areas of application for threaded bolts
Threaded bolts are found in all technical fields where components must be joined in a force-fit, secure and removable way. The variety of possible designs, thread types and machining options makes them a universal solution for bespoke joining tasks, from small electrical assemblies to large constructions in plant engineering. Each industry places its own demands on load-bearing capacity, corrosion protection, ease of assembly and traceability - and contract-manufactured threaded bolts provide the perfect basis for all of these cases.
Mechanical engineering
In mechanical and plant engineering, threaded bolts are used as load-bearing linking elements to fasten large assemblies, housings, or machine components together securely and quickly. Central requirements are the high tensile and shear strength of the connection as well as a precise matching of the thread to the specific load profile. Modern production facilities such as presses, machining centers, and assembly lines rely on individually tailored threaded bolts to withstand load peaks, vibrations, and continuous loading over time. Especially in modular plant concepts that require frequent disassembly or modification, precisely manufactured threaded bolts are a guarantee of lasting reliability and ease of maintenance.
Vehicle and shipbuilding
In mobility and commercial vehicle engineering, threaded bolts secure connections between load-bearing chassis and frame components, for example in truck and special-purpose vehicle construction. They are used specifically to fix powertrains, suspension systems, damper (shock absorber) mounts or hydraulic units and must withstand varying high loads. In shipbuilding they play an essential role in fastening engines, assemblies and structural elements, with corrosion-resistant bolt types particularly sought after for the maritime environment. Here, not only strength but also surface quality are decisive requirements for longevity and ease of maintenance.
Construction industry
Threaded bolts serve here as a link between prefabricated steel components, concrete anchors or support structures. In bridge construction, high‑rise and hall construction they are used for the assembly of load‑bearing structures, the connection of steel elements and the securing of temporary constructions. The specific choice of material - often high‑strength or galvanized bolts - ensures a durable connection even in harsh outdoor conditions, capable of withstanding large static and dynamic loads. In renovation and conversion projects, threaded bolts also allow flexible adjustments and options for dismantling.
Electrical engineering/Electronics
Threaded bolts are used in the installation of control cabinets, electronic assemblies, or in power electronics to reliably mount circuit boards, heat-conducting modules, or heavily loaded connectors. Their specific characteristics: minimal installation dimensions while still offering a precise fit and vibration-resistant connection concepts. Custom thread pitches and special materials such as non-magnetic stainless steels are possible here, as are mechanical machining operations for exact integration into miniature systems.
Conveyor technology
In the field of conveyor systems, automated production systems and warehousing technology, the connection of a wide variety of components - such as guides, sprockets, drive shafts or load-bearing frames - places particular demands on flexibility, strength and protection mechanisms against wear. It is not uncommon for threaded bolts with recessed fits, rotating elements or special surface treatments to be manufactured in modified forms to meet maintenance interval requirements and the demand for high process reliability.
Food industry
In hygiene-sensitive facilities, production lines and mixing systems, stainless-steel threaded bolts provide stable, corrosion-resistant and easy-to-clean connections. Thanks to smooth material transitions, controlled surfaces and special coatings, they meet strict hygiene requirements and eliminate contamination risks. From agitators and filling plants to conveying systems and packaging machines - the specially manufactured bolts match the industry’s high statutory standards in both dimensions and quality.
Processing areas and materials in the production of threaded bolts
Our threaded bolt production at mbo Osswald is focused on maximum flexibility and precision. With modern production methods we cover a wide range of possible shapes, lengths and diameters, so we can produce both one-off items and larger series according to individual customer specifications. Round materials with diameters from 4 mm to 65 mm and lengths between 5 mm and 350 mm can thus be processed precisely and economically – tailored to all technical specifications and operating conditions.
An essential success factor is the targeted selection of the right material: we use everything from undercut steel to stainless steel in A2 and A4 quality, up to specialized high-performance steels - whatever is ideal for the respective requirements. This variety enables the use of threaded bolts under a wide range of environmental conditions – from conventionally stressed industrial plants to high-strength or corrosive special applications.
Different shapes and lengths – maximum flexibility
Our contract manufacturing for threaded bolts is characterized by a very high degree of adaptability and customizability. Whether you need short fastening bolts for very compact connections, especially long threaded bolts to bridge larger component distances, or special shapes for complex constructions - at mbo Osswald you will always receive tailored solutions. We manufacture threaded bolts with diameters from 4 mm up to 65 mm and lengths from 5 mm to 350 mm. This wide production range makes it possible to realize the ideal fastener for every technical challenge.
You have options regarding the bolt head, transitions between thread and shank, and the incorporation of special contours such as multi‑flats, notches, wrench flats or special formations for assembly aids. Those facing extreme requirements can also have bolts produced with reinforced, slimmer or specially shaped shank sections to meet specific force distributions or space constraints. The combination of different manufacturing technologies - for example turning, milling and grinding - also ensures that even complex custom parts know no limits. For small or large series, spare-part production or prototypes: we always supply the required quantity, precisely adapted to your project timeline and logistics plan.
The most common materials: steels and alloys according to the application profile
At mbo Osswald we place the highest value on uncompromisingly matching the material selection of your threaded bolts to the respective application. For this purpose, various grades of undercut steel are available - ideal for classic industrial, assembly and construction sectors where excellent machinability, good durability and stable mechanical properties are required.
For demanding applications where additional requirements for corrosion protection or hygiene apply, we offer stainless steels such as A2 and A4 quality. Stainless steel A2 is primarily recommended for general industrial use, while A4 - due to its seawater resistance and increased resistance to aggressive media - is often preferred for chemical, offshore or food-technology applications.
In addition, high-strength and specially alloyed steels are available, for example for use under very high mechanical loads, in particularly aggressive environments, with strong heat generation or in contact with specific chemicals. These include heat-resistant, acid-, alkali- and temperature-resistant materials as well as special steels manufactured to customer specifications. We are happy to advise you on properties such as elongation at break, tensile strength, toughness and surface behaviour so that your threaded bolt delivers the desired service life and maintenance-free performance under all operating conditions.
Threaded bolts – Versatile machining options
Thanks to our modern turning and milling technologies, threaded studs can be precisely adapted to the requirements of any design. A wide portfolio of machining options is available to you – these include, among others, cross holes, grooves, a variety of milling geometries as well as multi-sided machining. Special contours such as spanner surfaces or internal hexagons can also be implemented flexibly, as can precision thread forms: both metric and inch threads – in regular, fine-pitch, left- and right-hand versions – are possible.
In addition, we can realize complex special geometries on request to meet your individual specifications. For clear identification and traceability, custom engravings, laser markings and specific labels can also be integrated without difficulty. This broad machining spectrum opens up numerous possibilities to design every connection solution precisely and to exact fit – whether for serial production or custom one-off manufacturing.
Various surface finishes for your threaded bolts
The right surface treatment plays a decisive role for threaded bolts when it comes to longevity, corrosion protection and optimal performance in their intended application. Thanks to numerous processes, bolt surfaces can be individually adapted to the specific requirements and environments.
Coating
Common coating methods include galvanic zinc plating, which provides bolts with a durable zinc layer for corrosion protection. In addition, processes such as phosphating, passivation or blackening are used, which either enhance the appearance or increase surface hardness and durability. We also offer special coatings on request that can be tailored to specific stresses or design requirements.
Treatment
Depending on the assembly and application requirements, we supply your threaded bolts either completely grease-free for use in sensitive or hygiene-critical areas, or with a defined oil film as additional corrosion and assembly protection. For particularly demanding environments, temporary protective coatings are also available.
Mechanical processing
To ensure the highest dimensional accuracy and surface quality, precision grinding is used when required. For documentation and traceability, we integrate laser engravings or individual markings directly into the component – both for serial numbers and for special codes or customer information.
Finishing
Through targeted heat treatments such as hardening, quenching and tempering or nitrocarburizing, we can further improve the properties of the bolt surface in terms of strength, durability and corrosion protection. This results in a threaded bolt optimally prepared for your specific loading conditions, ensuring maximum longevity and reliability – regardless of how harsh or demanding the operating conditions are.
The specialty: threaded bolts from mbo Osswald
mbo Osswald stands for the highest manufacturing expertise and versatility when it comes to threaded bolts according to drawing. Our range covers every variant of linking technology: from classic cylinder and flange bolts to special designs with cross-drilling, spanner surfaces, multi-sided profiles, steps or integrated special functions. Whether you need space-saving short fasteners for compact assembly spaces, long connection elements with stepped threads or particularly robust versions for extreme loads - all of this can be implemented quickly, precisely and tailored to your application.
Our technical expertise is evident not only in the variety of geometries, but above all in our ability to reliably realize challenging drawing specifications, demanding tolerances and technical special requests. Even on projects with changing requirements - for example prototypes based on new design data, pre-production runs for testing or very short-term market adjustments - we are at your side as a flexible, solution-oriented partner. Your advantage: at mbo Osswald you receive exactly the threaded bolt that is technically and economically optimal for your installation, maintenance and load cases.
Comprehensive service for threaded bolts from contract manufacturing
Our understanding of manufacturing goes far beyond the mere production of the product. At mbo Osswald you receive a comprehensive full-service solution for your linking element – on request we cover the complete process chain: from qualified technical consulting and feasibility analysis, including detailed drawing review, through the selection of the ideal material and, if necessary, testing, to on-time production, final inspection and seamless documentation.
All downstream process steps are also professionally handled: these include customer-specific packaging, thorough assembly preparation, desired markings or laser engravings, sorting and, if required, inventory stocking as part of blanket orders or Kanban solutions.
Thanks to efficient communication structures and central points of contact, smooth and rapid coordination is guaranteed. You benefit from maximum transparency, minimal administrative effort and flexible logistics – even in the event of last-minute schedule changes or urgent orders. This means you can rely on mbo Osswald to be not just a supplier, but a true full-service provider at your side that accompanies your project down to the last detail and thinks ahead.
