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Flat Washers

Flat washers are essential hardware components used to distribute the load of a threaded fastener across a surface. They help reduce surface wear, minimize loosening due to vibration, and support secure installation in wood, metal, and composite materials. Commonly used in construction, automotive, and machinery setups, flat washers improve joint strength and extend the life of fasteners.

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  • Brighton Best 5/16" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 5/16" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

  • Brighton Best 5/8" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best 5/8" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $37.80 - $37.80
    $37.80
    $37.80 - $37.80
    $37.80
    In Stock

    The Brighton Best 5/8" USS Zinc Steel Flat Washer – 100 Qty, a durable and dependable fastening solution for professional and industrial applications. Manufactured from high-quality steel with a protective zinc-plated finish, these washers are designed to resist corrosion while ensuring consistent load distribution. Built to USS (United States Standard) specifications, these 5/8 inch flat washers provide a precise fit with compatible bolts and fasteners. Ideal for construction, fabrication, e...
  • Brighton Best 1/2" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best 1/2" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $48.50 - $48.50
    $48.50
    $48.50 - $48.50
    $48.50
    In Stock

    Enjoy the Brighton Best 1/2" USS Zinc Steel Flat Washer – 100 Qty, a reliable fastening accessory designed for strength, stability, and corrosion resistance. Made from high-quality steel and finished with a protective zinc coating, these washers provide excellent load distribution and help prevent surface damage during fastening. Built to USS specifications, these 1/2 inch flat washers are ideal for use with bolts, nuts, and threaded fasteners in construction, maintenance, fabrication, and in...

  • Brighton Best 7/8" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 7/8" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 3/4" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $27.00 - $27.00
    $27.00
    $27.00 - $27.00
    $27.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 3/4" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material:Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 5/8" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $37.80 - $37.80
    $37.80
    $37.80 - $37.80
    $37.80
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 5/8" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 1/2" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $0.00 - $0.00
    $0.00
    $48.50
    $48.50 - $48.50
    $48.50
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 1/2" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 3/8" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $4.50 - $4.50
    $4.50
    $4.50 - $4.50
    $4.50
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 3/8" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 5/16" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 5/16" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 1/4" USS Zinc Thru-hardened Flat Washer - 100 Qty

    Brighton Best
    $6.50 - $6.50
    $6.50
    $6.50 - $6.50
    $6.50
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 1/4" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Thru-Hardened Finish: Zinc Standard: USS

  • Brighton Best 1" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $47.40 - $47.40
    $47.40
    $47.40 - $47.40
    $47.40
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 1" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

  • Brighton Best 7/8" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 7/8" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

  • Brighton Best 3/4" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $27.00 - $27.00
    $27.00
    $27.00 - $27.00
    $27.00
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 3/4" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

  • Brighton Best 3/8" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $4.50 - $4.50
    $4.50
    $4.50 - $4.50
    $4.50
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 3/8" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

  • Brighton Best 1/4" USS Zinc Steel Flat Washer - 100 Qty

    Brighton Best
    $6.50 - $6.50
    $6.50
    $6.50 - $6.50
    $6.50
    In Stock

    Features Usage: with nuts and bolts of same diameter and finish Protects material from nut or bolt head Washers provide larger bearing surface Specifications Brand: Brighton Best Diameter: 1/4" Diameter UOM: in Product Type: Flat Washer Pack of: 100 Material: Steel Grade: 2 Finish: Zinc Standard: USS

Load-Distributing Washers Designed to Strengthen and Stabilize Fasteners


  • Uniform Load Distribution Prevents Material Damage and Loosening

    • Flat washers evenly distribute the pressure of nuts or bolts to prevent damage to the contact surface and reduce the risk of fastener loosening.


  • Material Options to Match Strength, Application, and Environment

    • Steel flat washers offer strength for structural applications, while nylon flat washers insulate against electricity and protect delicate surfaces.


  • Surface Treatments Support Long-Term Use in Demanding Conditions

    • Galvanized and zinc plated flat washers resist corrosion, making them suitable for indoor and outdoor environments where moisture is present.


  • Sized for Support in Both Small Fastenings and Broad Contact Areas

    • Available in small to large flat washers, they support light fixtures, heavy hardware, or wide connections needing surface reinforcement.


  • Hardened for Strength in High-Pressure or High-Vibration Setups

    • Thru hardened washers are designed to resist wear and deformation under mechanical stress and continuous load cycles.



Frequently Asked Questions About Flat Washers


Do flat washers prevent vibration-related loosening?

Yes, they help stabilize the fastener connection and reduce vibration effects.


When are nylon flat washers preferred?

Nylon washers are ideal for electrical insulation and scratch-prone surfaces.


Are galvanized and zinc plated washers corrosion-resistant?

Yes, both finishes provide protection against rust and environmental wear.


What is the benefit of thru hardened flat washers?

They are hardened for better strength and wear resistance under stress.


Can flat washers be used in structural fastenings?

Yes, steel flat washers are commonly used in construction and heavy-duty tasks.

Clearance Center

  • Werner Self Trailing Rope Grab with 50% OFF Stainless Steel
    Save 50% Save %
    Save 50% Save %

    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
    Only 1 left!

    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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    Save 50% Save %

    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
    $440.80 - $440.80
    $440.80
    $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...