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Updated: 29 Apr 2026

10 Best Spring Lock Washers

#1 Best Pick
IMScrews 1/4" Spring Lock Washers - 304 Stainless Steel - Pack of 50 - Secure Fastening and Rust Resistance

IMScrews 1/4" Spring Lock Washers - 304 Stainless Steel - Pack of 50 - Secure Fastening and Rust Resistance

Brand: IMSCREWS
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  • Premium Material: Crafted from durable 304 stainless steel, our spring lock washers offer long-lasting performance and rust resistance.
  • Secure Fastening: Ensure a tight, reliable connection with these washers, preventing loosening and enhancing the stability of your assemblies.
  • Versatile Use: Ideal for various applications, including automotive, construction, machinery, and more, providing dependable support.
  • Easy Installation: These washers are designed for effortless use, making them suitable for both professionals and DIY enthusiasts.
  • Value Pack: Each set includes multiple washers, ensuring you have an ample supply for your projects.
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#2 Best Value
Glarks 160pcs M3/4/5/6/8/10/12/14/16 Double Side Lock Washer, 304 Stainless Steel Vibration Proof Lock Washers, Wedge Locking Washers, Conical Spring Washers, Spring Lock Washer Double Side Tooth

Glarks 160pcs M3/4/5/6/8/10/12/14/16 Double Side Lock Washer, 304 Stainless Steel Vibration Proof Lock Washers, Wedge Locking Washers, Conical Spring Washers, Spring Lock Washer Double Side Tooth

Brand: Glarks
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  • ♛【What You Get】: This conical spring washers kit come with 160pcs. Includes 30pcs m3, 30pcs m4, 30pcs m5 sizes, 20pcs m6, 20pcs m8, 10pcs m10, 10pcs m12, 5pcs m14, 5pcs m16. All of these conical spring washers are sorted packed in a plastic box for convenient carry and storage.
  • ♛【Reliable Material】: Double side lock washers are made of high quality 304 stainless steel. It has the strength and durability to withstand heavy loads and harsh conditions. The surface coating enhances its corrosion resistance and extends its service life. Not easy to break.
  • ♛【Toothed Surface Design】: These anti-vibration wedge locking Washers have a double-edged design with a uniformly toothed surface. This design creates tension between the bolt and nut, increasing friction. The connection is tight and effectively prevents loosening caused by vibration or dynamic forces.
  • ♛【Easy to Use】: Simply place the washer between the fastener and the mating surface. When the fastener is tightened, the wedge-shaped portion of the washer self-locks, creating a strong clamping force against vibration-induced movement. Ensures a tight and secure connection.
  • ♛【Wide Applications】: Vibration proof lock washers are widely used in machinery, construction, transportation, railroad, metallurgy, wind power and other related industries. They are designed for high vibration or high dynamic load environments. They can be used in the following industries: energy, robotics, medical, offshore, mining and quarrying, bridges, manufacturing and fabrication, shipbuilding, forestry and agriculture, heavy vehicles and military.
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#3 Budget Pick
EMSea 50pcs Spring Lock Washers Metric Flat Spring Washers M5 M6 M8 M10 M12 Carbon Steel Washers DIN127 for Most Metric Bolts Screws, Zinc Yellow

EMSea 50pcs Spring Lock Washers Metric Flat Spring Washers M5 M6 M8 M10 M12 Carbon Steel Washers DIN127 for Most Metric Bolts Screws, Zinc Yellow

Brand: EMSea
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  • Product size: This product includes five sizes, namely 5mm, 6mm, 8mm, 10mm, and 12mm in diameter
  • Applicability: This product is suitable for most metric bolts and screws
  • Wide range of uses: The product mainly reduces pressure and friction, prevents loosening or disperses pressure, and is suitable for cylinders, valves, faucets, pumps, automobiles, bearings, etc.
  • Product material: The product is made of metal carbon steel, which is strong and has high hardness. At the same time, the surface is galvanized and has good corrosion resistance
  • Product list:Product include a total of 10pcs M5 Spring Washer, 10pcs M6 Spring Washer, 10pcs M8 Spring Washer, 10pcs M10 Spring Washer, 10pcs M12 Spring Washer, which can completely meet your daily use needs and replacement.
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#4 Top Choice
Ymaiss 480pcs 304 Stainless Steel Spring Lock Washers Assortment Kit, 9 SAE&Metric Sizes Split Lock Washers Sets for Screws and Bolts M2 M2.5 M3 M4 M5 M6 M8 M10 M12

Ymaiss 480pcs 304 Stainless Steel Spring Lock Washers Assortment Kit, 9 SAE&Metric Sizes Split Lock Washers Sets for Screws and Bolts M2 M2.5 M3 M4 M5 M6 M8 M10 M12

Brand: YMAISS
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  • The metric spring lock washers assortment kit contains 9 sizes 480pcs, which are m2(100 pcs),m2.5(100 pcs),m3(80 pcs),m4(80 pcs),m5(50 pcs),m6(30 pcs),m8(20 pcs),m10(10 pcs),m12(10 pcs).9 Different sizes and enough quantities can meet your different daily needs.
  • The split lock washers are made of high-quality 304 stainless steel material with good rust and corrosion resistance features that can be used for a long time in wet or harsh environments.
  • Metric & SAE Split Lock Washer Set prevents nuts and bolts from turning, slipping, and coming loose because of vibration and torque, highly compatible with screws, nuts and bolts of same sizes and feature solid bearing surface to prevent nut/bolt head from tearing through material.
  • Split Ring Washer are highly compatible with screws, nuts and bolts of the same size and can be used to connect moving parts or to prevent loose connections, such as in furniture repair, outdoor construction, and electrical maintenance.
  • Each of the 9 different sizes of spring lock washers are individually stowed by type in an easy to carry clear case.Easy to store and use,so that the spring lock washers will not be lost or mixed up during use.
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#5 Popular Choice
Neprift M8 Spring Lock Washers, 304 Stainless Steel Split, Silver Elastic Gaskets Lock washers for Bolts, Nuts & Screws, 40PCS

Neprift M8 Spring Lock Washers, 304 Stainless Steel Split, Silver Elastic Gaskets Lock washers for Bolts, Nuts & Screws, 40PCS

Brand: Neprift
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  • [Precise Specification]: This package includes 40pcs m8 lock washer (split lock washers), standard M8 size with inner diameter 8mm/0.31", outer diameter 12.5mm/0.5", and thickness 2.0mm/0.08". As small split lock washer designed for M8 fasteners, these m8 spring washer perfectly match M8 screws, nuts, and bolts, meeting your needs for precise fastening in various projects.
  • [High-quality materials]: Our split lock washer stainless steel (304 stainless steel lock washers for screws bolts) are crafted from high-grade 304 stainless steel—one of the most corrosion-resistant steel materials. The stainless steel spring & washer boasts superior rust and oxidation resistance, performing reliably in harsh environments like high temperatures, cold weather, and high humidity, ensuring long-lasting durability and smooth finish.
  • [Effective locking performance]: Designed with offset split ends, these spring lock washer (locking washer/locking washers) bite firmly into mating materials when tightened, providing enhanced bolt tension for tighter assemblies. As heavy duty split lock washer (split washers), they effectively prevent loosening caused by vibration, mechanical aging, or frequent use, while the circular bearing surface protects against wobbling and instability.
  • [Wide Applications]: These split lock washer for bolts (lock washers) are highly compatible with M8 screws, nuts, and bolts, and can be paired with standard washers for uniform load distribution. Ideal for indoor/outdoor installations including sheet metal, deck building, fence construction, automotive repairs, industrial equipment, and home appliances—they prevent nut/bolt heads from tearing through materials and ensure secure, stable fastenings.
  • [Weak Magnetic]: A natural trait of 304 stainless steel, our stainless steel lock washer exhibits inherent weak magnetism due to structural transformations during manufacturing. Unlike other stainless steel materials with stronger magnetic properties, these Spring Lock Washers maintain consistently low magnetism, which is a normal and non-defective characteristic of premium 304 stainless steel.
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#6 Top Pick
eMagTech 60PCS M6 Spring Washers Stainless Steel Split Ring Helix Lock Washer Single Coil Square Section Shim Gasket Ring for General Purpose Engineering

eMagTech 60PCS M6 Spring Washers Stainless Steel Split Ring Helix Lock Washer Single Coil Square Section Shim Gasket Ring for General Purpose Engineering

Brand: eMagTech
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  • SPECIFICATIONS: Size-M6, hole diameter- 6mm, outer diameter- 9.3mm, thickness- 1.6mm, pack of 60.
  • SPRING WASHER: Split washer at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
  • USABILITY: Various metric size split lock washers have a left-hand helix, which means you can only use them with bolts that have right-hand threads to prevent clockwise rotation from vibration. When tightened, their uneven split ends bite into unhardened nuts and bolts for a tighter hold than curved or wave washers, but only for applications with clockwise rotation.
  • STAINLES STEEL: They are used for kitchen equipment and for apparatus for the chemical industry. Steels of this grade are not suitable for use in non-oxidising acids and media containing chloride, e.g. in swimming pools and in sea water.
  • SHIMS SUITABLE FOR: General purpose engineering, automotive panel fixing, building, sheet metal, plastic fabrication.
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#7 Top Pick
eMagTech 60PCS M10 Spring Washers Stainless Steel Split Ring Helix Lock Washer Single Coil Square Section Shim Gasket Ring for General Purpose Engineering

eMagTech 60PCS M10 Spring Washers Stainless Steel Split Ring Helix Lock Washer Single Coil Square Section Shim Gasket Ring for General Purpose Engineering

Brand: eMagTech
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  • SPECIFICATIONS: Size-M10, hole diameter- 10mm, outer diameter- 15.6mm, thickness- 2.6mm, pack of 60.
  • SPRING WASHER: Split washer at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
  • USABILITY: Various metric size split lock washers have a left-hand helix, which means you can only use them with bolts that have right-hand threads to prevent clockwise rotation from vibration. When tightened, their uneven split ends bite into unhardened nuts and bolts for a tighter hold than curved or wave washers, but only for applications with clockwise rotation.
  • STAINLES STEEL: They are used for kitchen equipment and for apparatus for the chemical industry. Steels of this grade are not suitable for use in non-oxidising acids and media containing chloride, e.g. in swimming pools and in sea water.
  • SHIMS SUITABLE FOR: General purpose engineering, automotive panel fixing, building, sheet metal, plastic fabrication.
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#8 Top Pick
M6 Spring Lock Washer (M8)

M6 Spring Lock Washer (M8)

Brand: OpusBags
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  • M6 Spring Lock Washer,
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#9 Top Pick
Keadic 760Pcs Spring Washers, Metric Sizes Split Lock Washers Sets Stainless Steel Lock Washers for Screws and Bolts, M2 M2.5 M3 M4 M5 M6 M8 M10 M12

Keadic 760Pcs Spring Washers, Metric Sizes Split Lock Washers Sets Stainless Steel Lock Washers for Screws and Bolts, M2 M2.5 M3 M4 M5 M6 M8 M10 M12

Brand: Keadic
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  • What You Will Get-- In this spring lock washer assortment kit, you could get total 760pcs assorted metal washers including 9 Metric sizes: M2 M2.5 M3 M4 M5 M6 M8 M10 M12, and all of these items are packed in a sturdy transparent plastic case, easy for your storage
  • Multi-functional Application- Spring lock washers are usually used to prevent nuts from loosening, reduce vibration and protect parts, perfect for home DIY, automotive, and shop use.
  • Excellent Material-- Keadic spring lock washers are made of black zinc plated alloy steel, with rust resistant galvanized finish, and long service time.
  • Well Made-- Our Washers are well made, with smooth and shiny suface, which looks very attractive, bringing convenience for your life.
  • Easy to Use -- In the case of relatively large load as well as bearing vibration load, it's better to use flat washer and spring lock washer combination.
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#10 Top Pick
#N/A 250x Stainless Steel Lock Washers Assortment Set, Spring Washers Fasteners, Precise Splited Lock Washers, 4# 6# 8# 10# 12# 1/4"

#N/A 250x Stainless Steel Lock Washers Assortment Set, Spring Washers Fasteners, Precise Splited Lock Washers, 4# 6# 8# 10# 12# 1/4"

Brand: Abbraccia
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  • 【Durable Materials】: The spring washers made of 304 stainless steel materials, rust resistance, providing the good resisitance and high temperature, which ensures outstanding durability.
  • 【Widely Used】: These spring washers can be used in a variety of applications, including automotive, aerospace, construction, electronics, and more.
  • 【Universal Size】: These washers assortment set includes 250pcs in 6 different sizes ensuring you have the right size for many job. Inner diamter: 50pcs 3mm, 50pcs 3.2mm, 50pcs 4.2mm, 40pcs 4.8mm, 30pcs 5.5mm, 30pcs 1/4''
  • 【Portable】: All pieces Splited Lock washers set comes in a durable transparent storage box, easy to store and carry anywhere.
  • 【Accurate Design】:The precise manufacturing ensures that each washer meets strict quality standards, providing consistent performance with each use.
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