The supply chain&#;a term once associated with the logistics, transportation and distribution world&#;has become common in everyone&#;s vocabulary. Unfortunately, because of the COVID-19 crisis and recent geopolitical events, strain remains on the collective supply chain.
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Never has this been truer than with fasteners in the off-highway mobile equipment manufacturing sector. From diesel and electric engines to hydraulic systems to electrical components, supply chain disruptions have made providing the equipment that customers want difficult. While fasteners may seem to be a small part of the overall manufactured product, they are especially important components in off-highway machines. Fast fact: Fasteners are about 50% of the bill of material and 1% of the production cost of a typical machine.
How can original equipment manufacturers (OEMs) of off-highway mobile equipment mitigate fastener supply chain challenges? The answer lies in the chosen fastener supplier and what that partner has learned and applied during the past couple years to help OEMs be more competitive.
Optimas SolutionsThe value of a full-service fastener supplier and how a manufacturer works and interacts with that supplier has been reinvented and rethought to help manufacturers improve the supply chain&#;particularly those seeking operational profits, production security and product performance. When working with existing distributors or seeking new ones, OEMs should evaluate a full-service fastener supplier in five key areas&#;risk reduction, inventory optimization, elevating operations, quality, and electrification and environmental considerations. Getting an understanding of their capabilities and approach in these areas will help OEMs develop a long-term supply chain relationship.
Lost shipments, lengthy delays and mistakes in orders affect a manufacturer&#;s production. Understanding how a fastener supplier reduces risk is important. One of the first factors to determine is availability. What is the availability of parts, and how does the supplier manage inventory? What is the proximity of distribution centers to see if delivery times can be shortened? What is a supplier&#;s record of on-time delivery in respect to these regional sourcing capabilities?
A measurable positive is if a fastener supplier offers in-house manufacturing capabilities. Seeking domestic or regional sources for components is growing in popularity as a strategy for OEMs to gain more control of the supply chain and shorten lead times.
The ability of a fastener supplier to reduce risk in the supply chain through better parts availability, sourcing capabilities, delivery prowess and manufacturing capabilities will make OEMs meet their customers&#; demands.Optimas Solutions
Inventory has always been an area to discuss with a potential fastener distributor. However, in this supply-chain challenged era, it is even more important. When discussing inventory, most people think about actual products and goods sitting in a physical plant or warehouse. While this is important, so many more elements must be considered, especially in the current environment.
Optimizing inventory isn&#;t about more. Factors to consider are:
Understanding a distributor&#;s capabilities in technology-enabled demand planning and replenishment automation is critical. Are these capabilities powered by real-time data? Do they offer key insights to make inventory an operational asset? The ability of a distributor to apply predictive and prescriptive data analytics easily and accurately to inventory management may be a difference maker for OEMs.
Another area to evaluate is the ability to develop solutions that improve an application, decrease manufacturing costs, add industrial engineering to reduce the number of SKUs in a machine or perform other cost-out activities. In short, a full-service fastener supplier can help OEMs rethink fastener applications in their products to offer better production and performance and reduce costs.Optimas Solutions
Does the supplier have in-house application and manufacturing engineers to design the right fasteners for products? Can they provide heat treating, plating, coating, patching and other secondary processes through one source? In-house tool and die capabilities with immediate access to engineers and machine operators are beneficial in a supplier. The ability of a fastener producer to perform custom work to meet an OEM&#;s demands is essential.
The key is to evaluate suppliers on their ability to be flexible and offer a wide range of services to meet every need. This helps OEMs eliminate complexity, save time, reduce waste, decrease costs, and improve efficiency and reproducibility.
Well-documented quality levels are a requirement for suppliers. Fastener suppliers must meet industry standards. OEMs should ask for verifications and certifications by standard bodies such as International Organization for Standardization (ISO) and International Automotive Task Force. These certifications validate that a supplier has proven quality processes.
While certification of quality processes throughout the organization is essential, it might be more important in quality lab testing. OEMs don&#;t want a faulty fastener to reduce product performance. Testing parts and mitigating safety hazards by measuring them against standards are important, and one&#;s supplier needs to adhere to such certifications as ISO , among others. It goes without saying that quality best practices by a full-service distributor and their manufacturing suppliers are essential when identifying a fastener partner that you can trust.
Manufacturing continues to move toward more environmentally safe and sustainable products and equipment. Because of this, fastener manufacturers and distributors must help OEMs embrace and figure out how to advance electrification and other environmental considerations in their mobile vehicles and components. Therefore, OEMs must understand the strategies of fastener producers and distributors in the following areas:
The future of electrification is undeniably bright. The overall focus on the environment, sustainability and other best practices in manufacturing will only increase. When evaluating a fastener supplier OEMs must understand the supplier&#;s strategic approaches in both areas.Optimas Solutions
Many exciting opportunities are available for off-highway OEMs in the coming years. With rising focus on environmentally friendly equipment and federal investments in infrastructure, examining how fastener partners and their technology fit into equipment manufacturing benefits OEMs&#; production, lead times, and many other factors.
Working with a full-service fastener supplier can benefit OEMs if they approach it through a 360-degree lens. The relationship can be a partnership because full-service fastener suppliers will understand how to:
Paul Przyby is senior vice president of sales with Optimas Solutions.
Fastenings come in a broad range of specifications, but whether you use a bolt, screw, rivet, peg, clamp, or any self-clinching hardware, choosing the suitable material is crucial. For instance, selecting a fastener composed of steel can significantly impact the strength and longevity of the joint.
Most industrial fasteners are made of steel and stainless steel in various grades, some synthetic non-metals, and brass. Despite having highly particular uses in a limited number of industries, metals like titanium help make a fastener. Their materials are usually evaluated based on their mechanical characteristics, the possibility for post-fabrication treatments, cost-effectiveness, and several other secondary factors.
Fastenings usually are considered a low-priority Category C handling event in procurement. Still, if they are not managed appropriately, they can result in product complexity, wasted inventory, and higher project costs in the future.
Your procurement process will go faster and produce better results if you know some of the essential traits of the fasteners you buy. Here are five things you should be aware of when buying fasteners.
Choosing a suitable fastener material is crucial when considering variables like strength, brittleness, and corrosion resistance.
Nearly 90% of all fastener manufacturers, carbon steel and stainless steel are the most utilized materials. The automobile sector is dominated by steel, stainless steel, and plastic fastenings. Steel is still becoming more and more popular because of its high degree of malleability, durability, and tensile strength.
Marine conditions are where silicon bronze is most frequently employed. Its alloy has a higher level of corrosion resistance than stainless steel fastenings and is more durable in maritime engineering than brass. Bronze, however, may be highly costly, indicating that its uses are constrained, although it does have a very appealing look.
Fastenings can also be made of aluminum. Although they are softer than the materials listed before, they exhibit good corrosion resistance. This material is frequently employed when weight is a crucial factor in technical criteria.
Typically, coatings are applied for two reasons: to increase or improve corrosion resistance or purely aesthetic and ornamental. The three most typical coatings for fastenings are zinc, hot-dip galvanizing, and chromium.
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In most settings, galvanizing offers higher corrosion protection, but it is susceptible to rusting if the coating is broken or is exposed to moisture and extended submersion in water.
The fastener is covered in a thick coating of zinc thanks to electroplating. More excellent corrosion resistance is produced as a result, although galvanized bolts cannot be used with ordinary nuts due to the thickness of the coating.
Although there are countless varieties of fastenings, bolts, screws, nuts, washers, clips, and pins are the most often used.
In each category, there are additional variants, and each application can call for the creation of a new fastener.
You can opt to develop your product utilizing standard off-the-shelf components or create your custom fastener best to serve your needs among these several fastener commodities.
Both tactics have benefits and drawbacks: Off-the-shelf parts are less expensive, but they might not be an excellent fit for your needs. Custom fastener engineering guarantees that parts satisfy the required specs, but it costs more.
Before creating new goods, the top engineering and supply chain teams collaborate to save factory inventory and enhance serviceability by limiting the number of fastenings to a predetermined list.
Another distinguishing feature that will affect where you may get your fastening is size. Manufacturing capabilities in specific size ranges, such as M6 or bigger and M5 or lower, are frequently developed by fastener manufacturers. This is because various size ranges require distinct pieces of equipment.
What does "M" stand for in screw size? The "M" represents the primary or nominal diameter, the dimension of the screw's most outwardly projecting portion. Although there are many additional measures, including length, pitch, and thread size, this is often the measurement used to identify the general size of a screw.
In contrast to many other fastenings, you can purchase components from many sources rather than the manufacturer directly. The latter is helpful if you need specialist fasteners or if your fastener requirements are overly large in terms of both volume and diversity. However, many manufacturers would decline to provide lower volume packages directly to their customers wholesale. It may provide a better deal if you search for different fastener kinds and sizes in the medium or low volume range.
Typically, the mechanical characteristics, possibilities for post-fabrication treatments, cost-effectiveness, and other factors are considered when choosing fastener materials. However, the ideal material for your application relies on what and where the fastener is needed to connect. Choosing a sturdy material that can endure the temperatures and has high corrosion resistance for crucial applications exposed to intense temperatures or corrosive conditions is essential.
This material is one of the cheapest materials to use when creating fastenings, which also offers versatility. It's a widely used and reasonably priced material option that offers producers many options. It works well for applications requiring a lightweight, lower-strength material with strong corrosion resistance. Aluminum may have the strength of steel while weighing a fraction of it when mixed with other metal alloys.
Tin and copper are the main components of the alloy used to make bronze, which is used to make fastening. Bronze is an excellent material for marine applications like shipbuilding or undersea construction due to its excellent corrosion resistance.
It has a similar reddish hue to copper but is more costly than most other fastening materials. The anti-corrosive and electrical conductivity qualities of brass, an alloy of copper and zinc, are comparable to those of bronze. However, brass has a lower tensile strength and is a comparatively soft metal. The hue of brass, which is golden-yellow, contributes to its attractiveness as a construction material.
The most popular copper-based alloy used to make fastening is brass, a mixture of copper and zinc. The most popular copper-based alloy is brass, which is reasonably cheap to buy and produce. Although it has a modest strength, it offers a respectable level of corrosion resistance. It offers adequate corrosion protection, is reasonably priced, and has acceptable electrical conductivity qualities. The corrosion resistance of the tin and copper alloy known as bronze is quite good.
Nearly 90% of all fastening produced yearly is made of steel, the most widely utilized material in fastener production. This metal's remarkable degree of formability, tensile strength, and durability contribute to its appeal. Steel is also more affordable to produce than other metal forms and is often easier to deal with. It may be produced without surface treatments but is often treated with zinc or chrome plating.
A standard fastener material, steel is available in many shapes and strengths, including alloy steel, carbon steel, stainless steel, and many more. Steel is a highly sought-after material for fastening due to its corrosion resistance and mechanical strength characteristics. The available mechanical strengths are up to 300ksi.
One of the most excellent materials for fastener production is titanium, which has exceptionally high-impact applications. With its high degree of strength and outstanding resistance to corrosion and wear, titanium is regarded as the best material for making fastening. It offers minimal weight, a high degree, and incredible resistance to corrosion and wear.
For technical purposes, engineered polymers provide particular features. Their safe operating temperatures generally fall between 100° C and slightly around 600° C. They also offer good tensile strength and strong corrosion resistance.
Ceramics are one of the materials that can tolerate heat, pressure, and corrosion the best. However, they are often not particularly robust; a slight over-torque will cause them to break. Because of their initial installation difficulty, they are avoided by most individuals.
The most typical steel type utilized in creating fastening is carbon steel. For screws and bolts made of carbon steel, grades 2, 5, and 8 are usually the norm; alloyed carbon steel is a more expensive version of these metals. In a final product, their mechanical strength varies from around 50 ksi to 300 ksi.
Lightweight synthetic plastic known as nylon is utilized in various fastening applications. It may be easily colored to fulfill aesthetic criteria, such as those required for replacing fastenings, and it has strong electrical and thermal insulating characteristics. It is also corrosion-resistant. Nylon, however, is susceptible to severe degradation at high temperatures and may lose strength at low temperatures. Additionally, because of its relatively low tensile strength, it is less useful for applications requiring high levels of physical stress.
The nickel-chromium-molybdenum alloy family that makes up Inconel fastenings is known for its robust strength at high temperatures and excellent corrosion resistance. Due to its solid thermal stability, Inconel may be employed in service temperatures between cryogenic and °F. Inconel bolts can endure a wide range of highly corrosive situations due to their high alloy composition. Inconel bolts are seldom ever attacked in moderate conditions such as the air, seawater, neutral salts, and alkaline media. In more corrosive environments, nickel and chromium resist oxidizing chemicals; however, nickel and molybdenum levels are high in non oxidizing environments.
Molybdenum is a silvery-white metal that is highly ductile and corrosion-resistant. It is collected as a byproduct from the mining of tungsten or copper and readily forms compounds with other elements.
Although molybdenum is often used in commercial applications as an alloy, it is mainly found in trace amounts in missiles, engines, and electric heater filaments.
They retain strength when used as fastenings because they have a very high melting point of degrees Celsius, a high level of thermal conductivity, and a slow thermal expansion rate. They work well in high-temperature vacuum furnaces, glass manufacture, and military applications because they can sustain temperatures without appreciably altering form, expanding, or softening.
Tungsten fastenings can block radiation and have high x-ray visibility because of their substantial bulk and base metal composition. Because of the metal's extremely high melting point&#; degrees Celsius&#;is the perfect remedy for some of the most intense vacuum furnace settings. Additionally, it has excellent corrosion resistance.
Zirconium and its alloys have exceptional corrosion resistance, making them ideal for specific chemical conditions. Zirconium has been utilized as nuclear fuel cladding since the s because it works well in superheated water and is transparent to thermal neutrons. Although zirconium and its alloys are still employed in water-cooled nuclear reactors, they have many other advantages. The substance is also utilized for gettering material in sealed vacuum devices, flashbulbs, and incendiary ordnance in the chemical manufacturing sector. Additionally, it is beneficial for building supplies.
Two popular grades are available from United Titanium: 702 and 705 Zirconium 702, a commercially pure grade that provides suitable corrosion protection and is resistant to stress-corrosion cracking and crevice corrosion. It is often employed in chemical processing. Zirconium 705 is the preferred alloy for most zirconium fastenings because it is substantially more robust and ductile than zirconium 702 and has about equivalent corrosion resistance when alloyed with 2 to 3 percent Columbium.
Zirconium resists corrosion in most organic and mineral acids, alkalis, and certain molten salts because heat treatment forms a vital oxide layer on the surface. Zirconium oxide can be created or improved by anodizing and heating in air, water, or steam, in addition to the natural regeneration of oxide that occurs when oxygen is present. These parts must be heat treated to particular conditions to give the best oxide layer possible on machined parts, especially on threaded fastenings.
Hex bolts with the UNS S designation are superior-grade super duplex stainless steel. With a minimum of 25% chromium, 7% nickel, and 4% molybdenum, this stainless steel alloy is resistant to some of the harshest environmental factors on the globe, which can lead to flaws like corrosion, cracking, erosion, pitting, and more. Additionally, stainless steel super duplex hex bolts offer twice as much mechanical strength as regular stainless steel. The following are some additional features of super duplex SAF hex bolts:
Additionally, compared to ferritic grade steels, super duplex alloy is more malleable and robust. Compared to typical austenitic and ferritic grade steels, super duplex hex bolts have nearly double the sustained strength capability.
Nowadays, the many different fastener types can make it intimidating to choose the best one for your application. But as you can see, there is a fastener for every project and it isn&#;t too difficult to research the different strengths and weaknesses within each one to make an informed decision
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