{"id":549,"date":"2026-10-09T08:00:25","date_gmt":"2026-10-09T00:00:25","guid":{"rendered":"http:\/\/www.aranciamiss.com\/blog\/?p=549"},"modified":"2026-10-09T08:00:25","modified_gmt":"2026-10-09T00:00:25","slug":"are-lock-washers-available-in-custom-sizes-4dbd-987249","status":"publish","type":"post","link":"http:\/\/www.aranciamiss.com\/blog\/2026\/10\/09\/are-lock-washers-available-in-custom-sizes-4dbd-987249\/","title":{"rendered":"Are lock washers available in custom sizes?"},"content":{"rendered":"

If you\u2019ve ever found yourself mid-project\u2014whether it\u2019s constructing a custom machine part, repairing a specialized industrial component, or assembling a prototype that requires perfectly sized fasteners\u2014you\u2019ve probably hit a snag with standard hardware. The standard lock washers you can grab from a local big-box store or even a general industrial supply catalog are great for common applications, but they often don\u2019t fit the bill for unique, size-specific needs. As a lock washer supplier who\u2019s been in this game for over a decade, one of the most frequent questions I get from engineers, maintenance teams, and small business owners alike is: \u201cAre lock washers available in custom sizes?\u201d The short answer is yes\u2014but there\u2019s a lot more to it than just saying \u201cyes.\u201d Let\u2019s break down what custom lock washers really mean, how we make them work, and why choosing a custom solution might be the difference between a project that holds up and one that fails when it matters most. Lock Washers<\/a><\/p>\n

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First, let\u2019s start with the basics to make sure we\u2019re all on the same page. Lock washers aren\u2019t one-size-fits-all parts. They\u2019re designed to prevent fastener loosening caused by vibration, thermal expansion, contraction, or repeated loading\u2014common issues in everything from heavy-duty farm equipment to aerospace assemblies. Standard lock washers come in a range of metric and imperial sizes, but those sizes are standardized to work with common bolt and nut dimensions. A standard \u00bc-inch split lock washer, for example, is made to fit a standard \u00bc-20 bolt. But what if you\u2019re working with a non-standard bolt? What if your application needs a washer with an outer diameter that\u2019s not 1.5 times the bolt size? Or a wall thickness that\u2019s thinner or thicker than standard to account for a tight, high-stress joint? That\u2019s where custom sizes come in.<\/p>\n

Over the years, I\u2019ve watched customers come to us with problems that standard washers can\u2019t solve. A few years back, we had an engineer from a custom off-road vehicle manufacturer reach out because they were designing a new suspension system. Their primary pivot bolt was \u215d-inch, but the space between the frame bracket and the control arm was just 0.062 inches\u2014way too tight for a standard \u215d-inch lock washer, which is typically around 0.120 inches thick. They tried grinding down standard washers, but that threw off the temper of the metal and caused the washers to crack under the repeated impact of off-road driving. That\u2019s when we made them a custom lock washer: \u215d-inch inner diameter, exactly 0.060 inches thick, with the same hardened steel and split design as our standard heavy-duty washers. It fit perfectly, and their team reported no loosening issues once the system was on the road.<\/p>\n

Another example: a team working on a legacy power plant needed to replace lock washers on a 1.25-inch bolt that was installed back in the 1970s. The original washers had a unique outer diameter of 2.125 inches\u2014way smaller than the standard 2.5-inch outer diameter for a 1.25-inch bolt. The plant\u2019s maintenance team had spent months searching for a replacement, and every supplier they contacted only offered the standard size. Custom was the only option here, because a standard washer wouldn\u2019t fit the recess in the bolted joint, which had been machined to the exact size of the original part. We worked with the plant\u2019s engineering drawings to replicate the exact dimensions, made from heat-treated carbon steel to withstand the high temperatures and vibrations of the turbine, and delivered the first order in just two weeks. That\u2019s the kind of problem custom lock washers solve that standard parts can\u2019t.<\/p>\n

But making custom lock washers isn\u2019t as simple as just adjusting a few measurements. There are a lot of factors that go into a custom order, and as a supplier, we have to make sure every step is done right to deliver a part that works as intended. First, the customer has to provide specific dimensions\u2014not just \u201cI need a big washer\u201d or \u201cI need a small washer.\u201d We need the inner diameter (ID), outer diameter (OD), and thickness, down to the thousandth of an inch. We also need to know the type of lock washer they need: split ( helical), star (external or internal tooth), wave, or any other design. Each type has its own purpose, and mixing up designs for a custom order can lead to failure. For example, a custom star tooth washer might need a different number of teeth than a standard one to grip the surface of a composite material without damaging it, which is exactly what another customer\u2014an aerospace parts manufacturer\u2014needed a few months ago. They were assembling a panel with carbon fiber, which scratches easily, so a standard external tooth washer would have left visible damage. We designed a custom internal tooth star washer with shorter, rounded teeth that gripped the metal frame without touching the carbon fiber, solving their problem.<\/p>\n

Next, material selection is a big part of custom lock washer production. Standard washers use common materials like cold-rolled steel, 304 stainless steel, or zinc-plated steel for general use. But custom orders might require specialty materials: 316 stainless steel for marine applications where corrosion is a risk, Inconel for high-temperature environments, brass for electrical conductivity in electronic assemblies, or even titanium for lightweight aerospace parts. We work with customers to test materials if needed\u2014for example, a food processing customer once needed lock washers that wouldn\u2019t leach chemicals into their product, so we sourced a food-grade 303 stainless steel and had them tested for compliance with FDA standards. The final custom washer had the exact dimensions they needed, plus the material properties required for their industry.<\/p>\n

Tolerances are another critical detail that often gets overlooked with custom parts. When you order a standard lock washer, the manufacturer has already set tight tolerances to ensure consistency, but custom orders need to have tolerances defined too. A tolerance of \u00b10.005 inches on a 2-inch outer diameter washer might be fine for a general industrial application, but for a medical device that\u2019s implanted in the body, tolerances might need to be \u00b10.001 inches. As a supplier, we work closely with each customer to set tolerances based on their application\u2019s requirements, and we use coordinate measuring machines (CMM) to inspect every custom order before it ships. We\u2019ve had customers come back to us with parts they thought were custom but were made with loose tolerances that led to fit issues, so we make it a priority to get that detail right upfront.<\/p>\n

One question I get a lot is about lead times for custom lock washers. A lot of people assume that custom parts take months to make, but that\u2019s not always the case. We keep our tooling flexible, which means we can set up for custom orders quickly\u2014usually in 3 to 5 business days for simple designs. More complex custom washers, like those with specialized tooth patterns or non-standard material processing, might take a bit longer, but even then, we typically deliver in less than two weeks for small to medium orders. For large volume orders, lead times are a bit longer, but we always communicate timelines clearly with customers so there are no surprises. We also understand that projects often have tight deadlines, so we prioritize rush orders when it\u2019s feasible\u2014we\u2019ve delivered custom lock washers to a customer who had a broken assembly line in 48 hours, for example, which helped them avoid thousands of dollars in downtime.<\/p>\n

Cost is another factor that comes up. Custom parts do cost more than standard washers, but the difference isn\u2019t as big as many people think, especially when you consider the cost of downtime or project delays from using the wrong part. A standard \u215d-inch split lock washer might cost a few cents each, but a custom one with tight tolerances and a specialty material might be 50 cents to a few dollars each. But when your entire assembly is shut down because a standard washer doesn\u2019t fit, or a poorly made custom washer fails, that cost pales in comparison to the loss of production. We work with customers to balance their needs\u2014sometimes we can adjust a custom design slightly to reduce cost without compromising performance, like using a common heat treatment process instead of a specialty one, or simplifying a tooth pattern without losing functionality. We\u2019re not here to overcharge for custom work; we\u2019re here to provide a solution that works for their project.<\/p>\n

I\u2019ve seen too many projects go wrong because someone tried to make a custom part themselves, or grabbed a standard washer that \u201csort of fits.\u201d Grinding down a standard lock washer might seem like a quick fix, but it removes the hardened layer of the metal, making the washer too soft to grip and prevent loosening. It can also cause the washer to warp, leading to uneven pressure on the bolt and joint. We had a customer once who did that for a heavy construction project, and within a month, the bolt loosened, causing a section of a crane boom to shift. Luckily, no one was hurt, but they had to replace all 120 washers in the boom, which cost them more than if they\u2019d ordered custom ones from the start. That\u2019s why we always tell customers: if standard parts don\u2019t fit or work, custom is the safe, cost-effective choice in the long run.<\/p>\n

So, to circle back to the original question: Are lock washers available in custom sizes? Absolutely. But they\u2019re not just \u201cwashers with different measurements\u201d\u2014they\u2019re tailored to your specific application, material needs, tolerance requirements, and performance demands. Whether you\u2019re a small business with a prototype that needs a one-off custom washer, a large industrial plant with legacy equipment that needs exact replacement parts, or an aerospace engineer building a new component that requires a specialized design, custom lock washers are a viable, practical solution.<\/p>\n

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If you\u2019re dealing with a project where standard lock washers just won\u2019t cut it, we\u2019re here to help. Our team has decades of experience working with all kinds of industries\u2014from automotive and aerospace to agriculture, power generation, and beyond. We can walk you through the steps of providing the right dimensions, selecting the best material, and defining tolerances to make sure your custom washers work exactly as they should. We offer free quotes for custom orders, and we\u2019re happy to answer any questions you have about the process. Don\u2019t let a fit issue or a performance problem derail your project\u2014reach out to us today to discuss your custom lock washer needs.<\/p>\n

Stud Bolts<\/a> References:<\/p>\n

    \n
  1. Machine Design, \u201cFastening Fundamentals: Lock Washers and Loosening Prevention,\u201d 2021.<\/li>\n
  2. ASME B18.21.1, \u201cStandard for Lock Washers, Helical Spring Type,\u201d American Society of Mechanical Engineers, 2020.<\/li>\n
  3. Stainless Steel World, \u201cCustom Fasteners for Industrial Applications,\u201d 2022.<\/li>\n
  4. NASA Technical Report, \u201cCorrosion Resistance of Specialty Fasteners for Aerospace Systems,\u201d 2019.<\/li>\n<\/ol>\n
    \n

    Handan Jihao Fastener Co., Ltd.<\/a>
    We’re known as one of the most professional lock washers manufacturers and suppliers in China. With abundant experience, we warmly welcome you to wholesale customized lock washers made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
    Address: A2, Row 31, Feiyu Screw World, Hebei Pu, Linmengguan Town, Yongnian District, Handan City, Hebei Province
    E-mail: wenzhaona0@gmail.com
    WebSite:     https:\/\/www.chinaboltnut.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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