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Notched washers are essential for securing components and preventing loosening, especially in applications with vibration. Choosing the correct type and size ensures optimal performance and longevity for your projects. This guide will help you navigate the key considerations for selecting the best notched washers for your needs.
👍【Size and Material】: Hokimder White Plastic Washers are 45 mm diameter, made of high-quality Polypropylene, for easy installation, and are available in 600 pack . High quality and super durable.
👍【Upgraded Design】: Hokimder White Plastic washer is made of Polypropylene, waterproof, high temperature resistant, non-rusting, and not easy to deform; increase the fixing effect, not easy to slip, safe and stable, and reusable.
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Reliable Material: these washers are made of polypropylene, a plastic material, featuring with good insulation, low profile and good durability, which are easy to hold
Size Information: the plastic washers are about 45 mm/ 1.77 inch in diameter, and the middle hole is about 5 mm; Each plastic washer is about 1.7 g
Sufficient to Use: you will get 500 washers for screws and nails, enough for your daily replacement and use in foam board insulation and other repair
Fixing and Supporting: these plastic washers are designed to use for fixing and supporting expanded polystyrene sheets, extruded polystyrene and many types of foam boards
Easy to Install: the round washer is easy to fix with screw or nail, and also you can remove it easily; The extra washers can be stored for the next time to use
Premium Quality Material:The washer kit is made of high quality polypropylene, which is a plastic material with good insulating properties, small shape, durability, easy to grip, and firmness
Size:The round plastic washers have a diameter of 1.77 in and a 0.2 in center hole for easy fixing with the corresponding size screws, each washer is approximately 1.7 grams
Sufficient Quantity:The package includes 100 load spreading polypropylene washers, which are sufficient for daily replacement
Practical Functions:The plastic flat washers are good for fixing and supporting rigid foam insulation foam boards, ideal for fixing insulation foam boards, expanded polystyrene boards, extruded polystyrene and many kinds of foam boards
Easy To Use:The surface of the plastic washers for screws are smooth and burr-free, beautiful and easy to use, the round washer is easy to fasten with screws or nails, also can be easily removed, suitable for use in foam board insulation, stabilizing...
Material: Made from polypropylene, these washers are designed to withstand various environmental conditions, ensuring long-lasting performance.
Ample Quantity: The package includes 500 washers, providing ample supply for large projects and ensuring you have enough for repeat applications.
Perfect Dimensions: Each washer measures 45mm in diameter with a 5mm middle hole, ideal for a snug and secure fit on screws or nails.(Screw not included)
Lightweight and Convenient: Weighing only 1.7g per piece, these washers are easy to handle, making installation and removal a hassle-free experience.
Versatile Use: Specifically designed for securing expanded polystyrene sheets, extruded polystyrene, and foam boards, these washers are a must-have for insulation tasks.
Enough for Use: you'll get 200 pcs of plastic washers for screws, enough for your daily replacement and for most types of medium soft foam boards and other repairs
Size Information: plastic washer is about 60 mm in diameter, 5.2 mm in overall depth, only 4.2 mm when low profile, 5.5 mm in the middle hole, suitable for screw sizes of 4, 5 or 6 mm (5 mm recommended); Each is approx. 5.5 g, light and easy to carry
Quality Material: these washers for screws are made of polypropylene (a plastic material), safe, sturdy, with good insulation, and can serve you for a long time; Plus, the reinforced design makes them easy fixation, rigidity and balance
Easy Installation: the washer kit is easy to fix with screws or nails, and can also be easily disassembled for repeated use; Excess washers can be stored for next use
Wide Range of Applications: these plastic washers are designed to hold and support expanded polystyrene panels, extruded polystyrene and many types of foam panels, bringing more convenience
Exquisite Material: Our foam board gasket is made of superb galvanized steel material, with smooth edges, not easy to deform or rust, corrosion-resistant, reliable and sturdy, and durable for long time use.
Practical Design: The middle of the foam board washers is designed with a groove for fixing screws, and the back of the washers is designed with a protrusion for inserting into the surface of the backboard for fixing.
Wide Applications: Ideal tight washer fastener kit choice for fixing and installing foam panels, back panels and more. Suitable for installation in various fields, such as home decoration, school, hotel, apartment, infrastructure assembly and...
Package Includes: There are 220 pieces of galvanized steel washers with a diameter of 1-1/8 inches, the abundant quantity can meet your various use and replacement needs, and can serve you with confidence for a long time.
Satisfactory Customer Service: We are committed to providing you with a satisfactory shopping experience. If you encounter any problems or have any suggestions, please contact us in time, and we will provide you with a satisfactory solution.
Premium Quality: Aienxn nylon flat washer made of high quality nylon material
Features: Aienxn flat washers have corrosion resistance, high temperature resistance and long service life
Wide Application: Nylon flat washers are used for electrical connection on automobiles or household and commercial appliances
Size: The nylon flat washers have 9 sizes of 1200pcs, M2, M2.5, M3, M4, M5, M6, M8, M10, M12, the most commonly used nylon flat washer is packed in a plastic box, and different sizes can meet your different needs
Timely Reply: If you have any questions, please email us and we will reply you within 24 hours
【Washers for Screws】- This assortment set includes 900 pieces of black nylon flat washers for screws and bolts. It comes in 9 different sizes: M2 (260 pieces), M2.5 (250 pieces), M3 (120 pieces), M4 (90 pieces), M5 (70 pieces), M6 (56 pieces), M...
【High-Quality Plastic Washers】- Our flat washers are made of top-quality nylon. This material has high hardness, excellent wear-resistance, corrosion resistance. weather, and high humidity areas. These washers are designed to ensure long-lasting...
【Wide Range of Applications】- This flat washers assortment set kit is perfect for various applications, including interior decoration, outdoor construction, electrical maintenance, and furniture repair. The flat washers can be used to fix bolts with a...
【Easy Storage】- All the nylon flat washers are neatly packed in a sturdy transparent plastic case. The case features separate grids to distinguish the 9 different sizes. Each grid has a specification label, making it easy for you to find the washers...
【Satisfaction Guaranteed】- Our team is committed to providing every customer with high-quality flat washers assortment set kit and satisfactory service. If you encounter any problems with our product, please don't hesitate to contact us. We will be...
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Notched Washers
Understanding Notched Washers
Notched washers, also known as Nord-Lock washers or locking washers with teeth, are designed with internal and external teeth. When tightened, the external teeth bite into the surface of the fastener and the connected material, while the internal teeth grip the bolt head or nut. This creates a secure locking mechanism that resists loosening caused by vibration or thermal expansion.
Key Features to Consider
Material: Common materials include steel (often zinc-plated for corrosion resistance), stainless steel for environments prone to rust, and sometimes hardened steel for heavy-duty applications.
Size and Diameter: Washers must match the bolt or screw size. Check the inner diameter (ID) to ensure it fits the fastener shank and the outer diameter (OD) to confirm it covers the intended surface area.
Tooth Design: The number and sharpness of the teeth influence the locking strength. Some designs offer more aggressive biting action for high-vibration environments.
Coating/Plating: Coatings like zinc plating offer basic corrosion resistance. Stainless steel options provide superior protection in wet or corrosive conditions.
Applications for Notched Washers
These washers are particularly useful in situations where loosening is a significant concern. Common applications include:
Machinery and equipment subject to vibration
Automotive and transportation components
Construction and structural assemblies
Any joint where reliability is critical
Choosing the Right Type
When selecting, consider the environment and the stress the joint will endure. For standard indoor use with minimal vibration, basic steel versions might suffice. For outdoor use, marine applications, or high-vibration machinery, stainless steel or hardened steel variants with more robust tooth designs are recommended.
Comparison Tips
Always verify the washer's inner diameter matches your bolt or screw size precisely.
Compare the outer diameter to ensure it provides adequate bearing surface without being excessively large.
For critical applications, look for washers made from high-quality materials like hardened steel or specific grades of stainless steel.
Consider the manufacturer's specifications regarding load capacity and vibration resistance if available.
Frequently Asked Questions
What is the primary function of a notched washer?
The primary function of a notched washer is to prevent fasteners from loosening due to vibration or thermal expansion. Its internal and external teeth create a strong locking action against the bolt head/nut and the clamped surface.
Are notched washers reusable?
Generally, notched washers are designed for single-use applications to ensure maximum locking effectiveness. Reusing them may compromise the integrity of the teeth and reduce their ability to prevent loosening.
What materials are commonly used for notched washers?
Common materials include steel, often with zinc plating for corrosion resistance, and stainless steel for enhanced durability in corrosive environments. Hardened steel is used for heavy-duty applications.
How do I choose the correct size notched washer?
You need to match the washer's inner diameter to the diameter of the bolt or screw you are using. The outer diameter should be appropriate for the bearing surface required for your specific application.
Can notched washers be used with different types of nuts and bolts?
Yes, notched washers are designed to work with standard nuts and bolts. They are placed between the bolt head or nut and the surface being clamped to provide the locking action.
When should I choose stainless steel over regular steel notched washers?
Stainless steel notched washers are recommended for applications exposed to moisture, chemicals, or outdoor elements where rust and corrosion are concerns. Regular steel washers are suitable for drier, indoor environments.
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