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Lock Washers

Lock washers are used to prevent nuts, bolts, and screws from loosening due to vibration, torque, or thermal expansion. They work by creating tension between fastener components, helping maintain joint integrity over time. Commonly used in machinery, construction, and structural applications, they come in different shapes and materials suited to specific requirements and load conditions.

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  • Kanebridge 5/8" Hot Dipped Galvanized Finish Medium Split Lock Washer - 100 Qty

    Kanebridge
    $56.00 - $56.00
    $56.00
    $56.00 - $56.00
    $56.00
    In Stock

    Features High strength fasteners for metal, wood, fiberglass, and plastic Hot Dipped Galvanized, further enhancing its longevity and performance in various environments Split lock washer is crafted from high-quality zinc-plated steel, ensuring superior durability and resistance to corrosion Split design of the washer provides a secure grip, effectively preventing loosening and ensuring a reliable fastening solution Specifications Product Type: Split Lock Washer Size: 5/8" Finish: Hot Dip ...
  • 1/2" Galvanized Lock Washer | Kanebridge 45323 | Heavy-Duty Split Washer | 50% OFF
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    Kanebridge 1/2" Hot Dipped Galvanized Finish Medium Split Lock Washer - 100 Qty

    Kanebridge
    $108.00
    $108.00 - $108.00
    $108.00
    $54.00
    $54.00 - $54.00
    $54.00
    10+ in stock

    Upgrade your fastening strength with the Hot-Dipped Galvanized Lock Washer (45323)—now available at an unbeatable 50% OFF. Built for heavy-duty performance, this medium split washer prevents loosening under vibration and ensures long-lasting bolt security. Its galvanized coating offers superior corrosion resistance, making it ideal for metal roofing, siding, outdoor hardware, structural connections, and industrial installations. Whether you're working on construction projects or routine maint...
  • 1/4" Zinc Plated Split Lock Washer | Anti-Loosening Hardware | 50% off on Kanebridge
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    Kanebridge 1/4" Zinc and Bake Plated Medium Split Lock Washer - 300 Qty

    Kanebridge
    $2.40
    $2.40 - $2.40
    $2.40
    $1.50
    $1.50 - $1.50
    $1.50
    10+ in stock

    Secure your assemblies with the Kanebridge 1/4" Zinc Plated Split Lock Washer—engineered to prevent loosening, resist vibration, and ensure long-term fastening stability. Now Get a flat 50% DISCOUNT for these strong carbon steel with a protective zinc finish, this medium split lock washer is ideal for general construction, automotive, machinery, and household applications. Designed for durability and maximum torque retention, it provides dependable performance anywhere a secure bolt connectio...

Fastening Stability for Dynamic and High-Vibration Applications


  • Split Designs Offer Back Tension to Resist Fastener Rotation

    • Split lock washers feature a helical shape that flattens under torque, creating continuous tension that holds threaded components securely in place.


  • Spring-Based Forms Absorb Shock and Prevent Joint Back-Out

    • Spring lock washers compress and expand with movement, helping absorb vibration and minimizing the risk of fastener loosening over time.


  • Material Variants Support Corrosion Resistance and Conductivity Needs

    • Galvanized and stainless steel lock washers offer protection in corrosive environments, ensuring consistent performance in outdoor or high-moisture settings.


  • Medium Split Types Balance Grip Strength with Surface Protection

    • Stainless steel medium split lock washers apply moderate tension without damaging contact surfaces, making them suitable for sensitive assemblies.


  • Used Across Industrial, Mechanical, and Structural Installations

    • These washers serve in critical fastening systems where bolt security is essential, such as in motors, brackets, and panel assemblies.



Frequently Asked Questions About Lock Washers


Are lock washers reusable?

Generally, no—they are designed for one-time use for optimal tension.


Can lock washers be used with stainless steel bolts?

Yes, stainless steel lock washers are compatible with stainless fasteners.


What is the difference between split and spring lock washers?

Split washers provide tension through their shape, while spring types absorb vibration.


Do galvanized lock washers resist rust?

Yes, galvanization offers a layer of corrosion resistance in moist environments.


Where are lock washers commonly used?

They are used in engines, machinery, building structures, and electrical panels.

Clearance Center

  • Werner Self Trailing Rope Grab with 50% OFF Stainless Steel
    Ships within 1 week
    Ships within 1 week

    Werner Self Trailing Rope Grab with Shock Pack, Stainless Steel

    Werner Fall Protection
    $162.00
    $162.00 - $162.00
    $162.00
    $81.00
    $81.00 - $81.00
    $81.00
    Ships within 1 week

    The Werner Self-Trailing Rope Grab delivers reliable, hands-free fall protection for professionals working at height. Designed for 5/8-inch (16 mm) synthetic rope lifelines, this stainless steel rope grab automatically follows the user’s movement up and down the lifeline, providing smooth mobility and instant locking in the event of a fall. Built from premium stainless steel, the L240002 offers superior corrosion resistance and long-term durability in tough jobsite conditions. The integrated ...
  • Werner 6 ft DeCoil Tie-Back Twin Leg Lanyard, durable fall protection harness with integrated energy absorber, now available at 50% off.
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    Werner 6 ft DeCoil Tie-Back Twin Leg Lanyard

    Werner Fall Protection
    $415.20
    $415.20 - $415.20
    $415.20
    $207.60
    $207.60 - $207.60
    $207.60
    Only 7 left!

    The Werner Twin Leg Lanyard comes with a 50% offer and is designed to deliver premium fall protection, flexibility, and durability for workers in construction, maintenance, and industrial environments. Featuring tie-back capability, it allows the user to anchor directly to the structure, eliminating the need for a separate anchorage connector. With twin-leg construction, this lanyard offers 100% tie-off — ensuring continuous protection when moving between anchor points. The integrated DeCoil ...
  • Werner LITEFIT™ Small Construction Harness with tongue buckle legs — 50% off.
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    Werner LITEFIT™ Construction Harness Tongue Buckle Legs Small

    Werner Fall Protection
    $1,491.80
    $1,491.80 - $1,491.80
    $1,491.80
    $745.90
    $745.90 - $745.90
    $745.90
    10+ in stock

    The Werner LITEFIT™ Construction Harness in half of the price delivers all-day comfort, superior fit, and dependable safety for construction professionals working at height. Designed with Werner’s trusted engineering, this full-body fall arrest harness provides the perfect balance between lightweight comfort and heavy-duty durability. The tongue buckle leg straps allow for easy adjustment and a secure fit, while the built-in back D-ring ensures reliable fall arrest connection. Featuring durab...
  • Werner 50 ft Max Patrol Self-Retracting Lifeline, Galvanized Cable at 50% off
    Ships within 1 week
    Ships within 1 week

    Werner 50 ft Max Patrol Self-Retracting Lifeline, Galvanized Cable

    Werner Fall Protection
    $499.00 - $499.00
    $499.00
    $499.00 - $499.00
    $499.00
    Ships within 1 week

    The Werner 50 ft Self-Retracting Lifeline (SRL) with galvanized steel cable provides reliable fall protection with superior reach and mobility and get 50% offer. Engineered for overhead use, this Class 1 SRL is designed to arrest falls quickly while minimizing impact forces on the user. Built with Werner’s advanced internal braking system, the Max Patrol™ SRL offers smooth deceleration and quick activation, enhancing safety in elevated work environments. The durable galvanized steel cable res...
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    Safewaze 11 ft Cable Class A Self-Retracting Lifeline with Snap Hook

    Safewaze
    $149.00
    $149.00 - $149.00
    $149.00
    $74.50
    $74.50 - $74.50
    $74.50
    Only 1 left!

    The Safewaze 11 ft Cable Class provides dependable, compact fall protection for workers at height. Designed for safety, portability, and performance, this Class A SRL features a durable galvanized steel cable and double-locking swivel snap hook to ensure secure attachment in all conditions. Engineered for construction, maintenance, and industrial applications, this self-retracting lifeline offers smooth lifeline retraction, rapid fall arrest, and minimal impact force in the event of a fall. I...
  • Radians Tecona® Smoke Anti-Fog Safety Glasses
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    Radians Tecona® Smoke Anti-Fog Safety Glasses

    Radians
    $201.24
    $201.24 - $201.24
    $201.24
    $100.62
    $100.62 - $100.62
    $100.62
    10+ in stock

    The Radians Tecona offers dependable eye protection with a lightweight and stylish wraparound design. Engineered for comfort and durability, these glasses feature a scratch-resistant smoke lens that reduces glare and eye strain in bright outdoor conditions — perfect for construction, landscaping, or industrial work. The anti-fog coating ensures clear vision even in humid or high-heat environments, while the vented rubber nosepiece and rubber-tipped temples provide a secure, non-slip fit throu...