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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.
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
Reliable Materials: These plastic washers are made of polypropylene material, waterproof, not easily deformed, and have good insulation, corrosion resistance, and temperature resistance, providing reliable working performance for various installation...
Precise Dimensions: Each plastic washers flat measures 45mm/1.77 inches in diameter with 5mm center hole, maintaining consistent thickness and weight of 1.7 grams per unit
Adequate Quantity: The package contains 100 plastic washers, offering sufficient supply for foam board fasteners installation and multiple construction applications
Practical Function: These thermal insulation washers are suitable for fixing and supporting rigid foam insulation foam board, foamed polystyrene board, extruded polystyrene and many types of foam board, which help to distribute pressure and prevent...
Simple Installation:These plastic washers are round with smooth edges, beautiful and easy to use, easy to fix with screws or nails, and easy to disassemble. They are suitable for foam board insulation, stabilizing gypsum ceiling, installing polystyrene...
[DURABLE AND CORROSION RESISTANT] Our flat washers made of high-quality 304 Stainless Steel, which is superior to regular steel and has higher corrosion resistance than ordinary washers. It has longer service life, not easy to damage, more solid in bad...
[VALUE PACKAGING] This package contains 50 pcs washers, it storages in a plastic box. You can get your work done easily and qucikly. They are ideal for use at home, in the office or at work.
[APPLICATIONS] Flat washers are used to distribute loads of threaded bolts, screws and nuts, provide a smooth-bearing surface, prevent damage and ensuring a secure, solid connection.
[INTIMATE SERVICE] We focus on customer satisfaction, if you have any questions or are not satisfied, you can contact us by email, we will solve all your problems as soon as possible.
🥰【High quality and durable material】URLWALL Flat Washer Set is made of plastic nylon material, smooth without burr. Features: Insulation, heat insulation, wear-resisting corrosion resistance, long service life.
🥰【Full size】It contains 500 Pieces / M2, M2.5, M3, M4, M5, M6, M8, M10 flat wahers.8 different sizes of nylon flat spacer, can meeting your different needs.
🥰【Good protection】Metric sealing NYLON washers mainly used to reduce pressure and friction, prevent leakage, isolate, loosening or disperse pressure.Also to increase contact area, reduce pressure and protect parts and screws.
🥰【Widely Application】 Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection.
🥰【Convenient packaging】Comes with a storage box to avoid loss and messy, easy to find and store.If you have any questions about Flat Washer Round Spacer,please be free to let us know,we will serve for you wholeheartedly.
[PRODUCT SIZE] Inside Diameter: 1/4 inch, outside Diameter: 1 inch
[DURABLE AND CORROSION RESISTANT] Our flat washers made of high-quality 304 Stainless Steel, which is superior to regular steel and has higher corrosion resistance than ordinary washers. It has longer service life, not easy to damage, more solid in bad...
[VALUE PACKAGING] This package contains 50 pcs washers, it storages in a plastic box. You can get your work done easily and qucikly. They are ideal for use at home, in the office or at work.
[APPLICATIONS] Flat washers are used to distribute loads of threaded bolts, screws and nuts, provide a smooth-bearing surface, prevent damage and ensuring a secure, solid connection.
[INTIMATE SERVICE] We focus on customer satisfaction, if you have any questions or are not satisfied, you can contact us by email, we will solve all your problems as soon as possible.
【Premium 304 Stainless Steel Material】These flat washers are made of high-quality 18-8 (304) stainless steel, which has excellent anti rust, anti-corrosion, and anti discoloration properties. These washers are durable in high humidity environments...
【Comprehensive 12-Size Assortment Kit】This 108-pieces washer kit covers the most common metric washers sizes (M3, M4, M5, M6, M8, M10, M12). The organized assortment saves you time and money, eliminating the need to purchase individual sizes and...
【Secure & Protective Flat Washers】Designed for seamless compatibility with screws, nuts, and bolts of matching sizes. Thick fender washers can form larger bearing surfaces under high stress conditions, providing excellent vibration reduction and...
【Easy Storage】All stainless steel washers assortment come with a transparent storage box for easy sizing, and each compartment has clear labels to help you quickly find the size you need for work. Whether it's a large project or a small task, you can...
【Wide Application】These stainless steel flat washers are compatible with standard screws, nuts, and bolts, providing reliable fastening even in harsh environments. Very suitable for automotive use, mechanical assembly, furniture repair, outdoor...
WASHERS FOR LEVELING: Our square washers are beveled and angled to keep the bolt or nut perpendicular to the bolt shaft, ensuring even pressure and reducing the risk of fastener slippage, loosening or damage
SUITABLE FOR BEVELED INSTALLATIONS: This steel wedge washer can be used to fasten equipment with incomplete surfaces or inclined machining, providing a flat support surface for the bolt head or nut. Also applied to underlying surface inclined
HIGH-QUALITY MATERIAL: Made of hardened carbon steel with a protective zinc-plated coating, which is strong and corrosion-resistant, prolonging the service life of the washer and allowing it to be used for a long time in different environments
WIDE RANGE OF APPLICATIONS: Square beveled washers are commonly used in architectural, mechanical and industrial applications such as bridges, buildings, automobiles or other steel erections where beams and plates often meet at an angle
PACKAGE CONTENT: 10 pcs washers are included in the package. Each washer has an inside diameter (ID) of 3/8 inch, an outside dimension of 7/8 x 7/8 inches, and a thickness of 1.5 to 5 mm to ensure even stress
Last update on 2026-09-01 / 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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