Best M18 Sealing Washers in 2026

【STOPPING LEAKS】: If you are trying to fix leaky in faucet, shower head, hose and washing machine, this rubber washer kit is the perfect for you. 20 different sizes of flat rubber washers can be provide a good seal for all connections. WINSTECK makes dripping connections be a thing of the past.

【PERFECT PRODUCT】: WINSTECK rubber hose gaskets fit most standard pipe/hose seal repairs of 1", 3/4", 1/2", 3/8", 1/4", 1/8 inch or 5/8". House faucets, showers, garden hoses and washing machine connections are also included. You will never have to worry about getting the incorrect size again.

【UPGRADED SET】: With this plumbing rubber gasket kit, there are 2 different materials and 6 types to choose from. We upgraded 2 different types of filter washers. One of them is a flat strainer washer and the other is a convex strainer washer which captures more sediment in the water and protects the hose from being clogged by sediment.

★ Tip: These washers NOT compatible with 3/4" garden hose fittings sealing.

★ This product has 3/8-inch inner diameter, 3/4-inch outer diameter, 1/8 inch thickness.

★ Constructed of a strong and durable silicone, construction better sealing, meaning it was built for longevity.

Sufficient supplies: one package includes many plastic washers in transparent color, enough quantity to meet daily use and replacement

Reliable material: flat washer gasket is made of vinyl material, sturdy, not easy to break or age, wear-resistant, with strong sealing, and can be applied for a long time

Dimension: the outside diameter is 3/4 inch (19 mm), the inside diameter is 1/4 inch (6 mm), thickness is 1/16 inch, this clear washer is designed to work with 3/4 inch (19 mm) standoff cap assemblies

[Material] These washers are made of high quality rubber material, they are durable and has longer service life.

[Good Sealing] The rubber rings can work greatly as sealing washer and plug washer set, they have good sealing performance, high reliability and great durability.

[Size]1/2": ID11mm/OD19mm; 3/4": ID14mm/24mm; 1": ID21mm/OD31mm.

Sufficient Quantity: the package comes with a total of 80 galvanized steel washers (screw not included), which measure approx. 1-1/4 inches in diameter, abundant quantity to satisfy your various use and replacement needs

Reliable Quality: made of quality steel with rust resistant galvanized exterior finish, our foam board washers are reliable and sturdy, not easy to deform or rust, which can serve you for a long time with confidence

Easy to Install: the middle of the 1-1/4 inch washers is designed with a groove for driving screws, and the backside of the washer is convex for inserting into the surface of the back plate, which plays a fixed role

[Size] - 6mm(0.24 Inch) OD M3(0.11 Inch) ID 0.5mm(0.02 Inch) Thickness

[Application] - Used for faucet pipe, hose bolt, valve, or other gardening maintenance or retrofit

[Function] - It can prevent the pipe from leaking and provide positive shut off, stop leaks to save energy

Sufficient Quantity: you will receive 40 pieces of neoprene rubber washers, which is about 1 1/2 inch OD x 3/8 inch ID x 1/4 inch thickness, the proper size and enough quantity for you to use

Reliable Quality: made of quality neoprene rubber, these washers for screws are sturdy and flexible, heat resistant and not easy to break, which are reliable to use and can provide you with a long service life

Easy to Use: the rubber flat washer is very easy to install, no need to use extra tools, and you can install it according to the appropriate situation and scene, which is convenient and practical, saving time and effort

Works with #8 and #10 Sized Screws

Used to prevent leakage, distribute pressure of the bolt or screw.

Stainless Steel 18-8 for high corrosion resistance

[Material] These washers are made of high quality rubber material, they are durable and has longer service life.

[Good Sealing] The rubber rings can work greatly as sealing washer and plug washer set, they have good sealing performance, high reliability and great durability.

[Size]1/2": ID11mm/OD19mm; 3/4": ID14mm/24mm; 1": ID21mm/OD31mm.

DURABLE: These washer rings are made of high quality rubber material for long service life, durable to use.

GOOD PERFORMANCE: The flat rubber washers are resistant to heat, they can provide a better seal and help prevent water leaks.

CONVENIENT TO USE: Sealing o rings are compact in size and light in weight, easy for storage and use.

Sufficient Supplies: Include 100 plastic washers gaskets in transparent color, enough quantity to meet daily use and replacement.

Reliable Material: Flat washer gasket is made of vinyl material, sturdy, not easy to break or age, wear-resistant with strong sealing, can be applied for a long time

Dimension: The flat washer gasket thickness is 1/16 inch, outside diameter is 3/4 inch, the inside diameter is 1/4 inch,this clear washer is designed to work with 3/4 inch standoff cap assemblies.

Package Included：you will receive 24 pieces 1/ 2 inch tap connector washers, Outer Diameter: 19 mm/ 0.75 inch, Inner Diameter: 11 mm/ 0.43 inch, Thickness: 2 mm/ 0.08 inch, good sealing, sufficient quantity to meet your different daily usage.

Seal Design: Specially design for good seal ,prevents leaks, abrasion/contact damage.Great for repairing a leaky shower head connection and suitable for replacement for many plumbing and engineering applications.

High-Quality Material: rubber washers are made by good rubber, these sealing rings hose washers are durable and sturdy, have nice heat resistance and good air tightness, not easy to deform, reliable to use with long service life.

Kind Reminder: to avoid an unpleasant shopping experience, please note that confirm the required size and material before purchasing.

Dimension: the outside diameter is 3/4 inch (19 mm), the inside diameter is 0.236 inch (6 mm), thickness is 1/16 inch, this clear washer is designed to work with 3/4 inch (19 mm) standoff cap assemblies.

Widely Applicable: with nice an effect of repairing shower handles, these washer spacer can nicely replace worn washers on glass shower door handles/ towel bars, reducing costs and saving time and effort.

Material: The plaster washers are crafted with steel and with zinc plated, which is sturdy and well made, and can serve you for a long time.

Practical plaster washer: The plastic plaster repair rings work well to fix the plaster against the lath, which can prevent or control sagging and cracking from expanding, helping your ceilings and walls maintain in good condition.

Easy to Store: Small size won't occupy much space. Lightweight plaster repair kit allows the metal plaster washers to easily carry or store in a tool case or drawer.

Adequate Quantity: you will be provided with 200 pieces of rubber washers, enough quantity can meet your daily needs and replacement, which can bring much convenience to your life

Quality and Sturdy: made of oil resistant neoprene rubber material, rubber spacer features fine workmanship, tough and wear resistant, sturdy and quality, strong and reliable, not easy to break, can serve you for a long time, so you can apply it confidently in daily usage

Size Details: rubber flat washer measures about 1/2 inch OD x 3/16 inch ID x 1/16 inch thickness, proper size for easy carrying and grasping, make sure to check the size carefully before ordering to avoid unpleasant shopping

Size: Inner Diameter: 2.5mm / 0.1 inch; Outer Diameter: 5mm / 0.2inch; Thickness: 1mm / 0.04 inch

Advantage: Nylon washers can be used for sealing applications, i.e. in water, oil, air, etc. They can also be used for cushioning, reducing pressure and friction, increasing the contact area and providing a support surface for fasteners.

Application: Nylon flat washers are widely used in home installations, and household appliances which with bolted connections. It can also be used as a sealing ring for faucet pipes, hose nuts or garden watering tool accessories.

Size: Inner Diameter: 3mm / 0.12 inch; Outer Diameter: 7mm / 0.28inch; Thickness: 1.2mm / 0.05 inch

Advantage: Rubber washers can be used for sealing applications, i.e. in water, oil, air, etc. They can also be used for cushioning, reducing pressure and friction, increasing the contact area and providing a support surface for fasteners.

Application: Rubber flat washers are widely used in home installations, and household appliances which with bolted connections. It can also be used as a sealing ring for faucet pipes, hose nuts or garden watering tool accessories.