Best 1-1/2-Inch Washers: Top 10 Picks Reviewed

Looking for the best 1-1/2-inch washers for your projects? We’ve tested and reviewed the top 10 options to help you find the perfect fit for automotive repairs, plumbing, or DIY tasks.

Finding the right washer can make all the difference in your projects. Whether it’s for automotive repairs, plumbing, or DIY tasks, the 1-1/2-inch washer is a must-have tool. It ensures strong support and durability for your fasteners.

From stainless steel to rubber options, these washers are built to last. They resist rust, corrosion, and wear, even in tough conditions. Their large size spreads force evenly, protecting surfaces and boosting strength.

We’ve tested and reviewed the best 1-1/2-inch washers for you. Discover the perfect fit for your needs and take your projects to the next level.

List of Top 10 1-1/2-Inch Washers

Image Title Best For Price
BNUOK 33PCS 5/16 BNUOK 33PCS 5/16″ x 1-1/2″ Fender Washers, Thickened 304 Stainless Steel 18-8 Fender Washer,5/16″ ID x 1-1/2″ OD

These BNUOK 33PCS 5/16″ x 1-1/2″ Fender Washers are perfect for anyone working on automotive repairs, sheet metal projects, plumbing, electrical tasks, or DIY projects. They’re great for preventing pull-through and adding extra strength to your fasteners.

View on Amazon (paid link)
BNUOK 40PCS 1/4 BNUOK 40PCS 1/4″ x 1-1/2″ Fender Washers, 304 Stainless Steel 18-8, Thickened 1/4 Fender Washer,1/4″ ID x 1-1/2″ OD

BNUOK 40PCS 1/4″ x 1-1/2″ Fender Washers are perfect for anyone working on automotive repairs, sheet metal projects, plumbing, electrical tasks, or DIY projects. These sturdy washers provide extra support and prevent damage to materials.

View on Amazon (paid link)
Bates- Stainless Steel Fender Washers for Bolts, 1/4 Bates- Stainless Steel Fender Washers for Bolts, 1/4″ x1-1/2, 45 pcs, 1/4 Fender Washer

Perfect for builders, mechanics, and DIY fans who need strong, rust-free support. These washers give extra hold and a clean finish every time.

View on Amazon (paid link)
30PCS 5/16 30PCS 5/16″ x 1-1/2″ Black Fender Washers, 18-8(304) Stainless Steel Flat Fender Washer for M8 Bolts, 5/16″ ID x 1-1/2″ OD, 0.06” Thick

These black fender washers are perfect for DIY enthusiasts and professionals working on automotive, home, or electrical projects. They’re great for anyone needing strong, corrosion-resistant washers for M8 bolts.

View on Amazon (paid link)
[20 Pack] 1/2 [20 Pack] 1/2″ x 1-1/2″ OD Stainless Steel Fender Washer – Choose Size Metal Flat Washers for Bolts (304 Stainless Steel)

These stainless steel fender washers are perfect for anyone who needs strong, rust-resistant hardware for indoor or outdoor projects. Whether you’re working with wood or in wet environments, these washers will last longer and support all your needs.

View on Amazon (paid link)
Danco 1-1/2 in O.D. Oversize Size Union Washer, 60094Z, 10 Count (Pack of 1) Danco 1-1/2 in O.D. Oversize Size Union Washer, 60094Z, 10 Count (Pack of 1)

This product is perfect for plumbers, DIY homeowners, and anyone fixing piping systems who needs a strong, easy-to-install washer that keeps connections secure and insulated.

View on Amazon (paid link)
15PCS 1/2 15PCS 1/2″ x 1-1/2″ Fender Washers, 18-8(304) Stainless Steel Flat Fender Washer, 1/2″ ID x 1-1/2″ OD, 0.1” Thick

These 15PCS 1/2″ x 1-1/2″ Fender Washers are perfect for DIY enthusiasts and professionals who need reliable, rust-resistant parts for home, automotive, or electrical projects. Made of high-quality 304 stainless steel, they’re ideal for anyone looking to save time and money with a durable, long-lasting solution.

View on Amazon (paid link)
BNUOK 35PCS 1/2 BNUOK 35PCS 1/2″ x 1-1/2″ Fender Washers, 304 Stainless Steel 18-8, Thickened 1/2 Fender Washer,1/2″ ID x 1-1/2″ OD

Perfect for DIY enthusiasts, mechanics, and professionals, these BNUOK 35PCS 1/2″ x 1-1/2″ Fender Washers are ideal for anyone working on automotive repairs, sheet metal projects, plumbing, or electrical tasks. Their rust-resistant 304 stainless steel and large size make them a reliable choice for heavy-duty applications.

View on Amazon (paid link)
Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer, Red Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer, Red

This Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer is perfect for anyone fixing a leaky sink. It’s easy to use and works great with tailpieces and strainers.

View on Amazon (paid link)
Plumb Pak PP25519-20 Beveled Slip Joint Washer, 1-1/2 in, Polyethylene, 1.5 Inch Plumb Pak PP25519-20 Beveled Slip Joint Washer, 1-1/2 in, Polyethylene, 1.5 Inch

This 20-pack washer set is perfect for plumbers, DIY homeowners, and anyone who wants durable, easy-to-use parts for quick pipe repairs. Strong plastic construction and a 1-1/2-inch size make it a reliable fit every time.

View on Amazon (paid link)

Detailed Reviews

Discover the top 10 1-1/2-inch washers in this expert-curated guide. Each product is thoroughly reviewed for quality, durability, and value. Whether for automotive, plumbing, or DIY, find the perfect washer to meet your needs. Read on to make an informed choice and elevate your projects with confidence.

1. BNUOK 33PCS 5/16″ x 1-1/2″ Fender Washers, Thickened 304 Stainless Steel 18-8 Fender Washer,5/16″ ID x 1-1/2″ OD

BNUOK 33PCS 5/16

BNUOK 33PCS Fender Washers are made of high-quality 304 stainless steel. They resist rust and corrosion for long-lasting use.

These washers have a 5/16″ ID and 1-1/2″ OD. They are 0.059 inches thick and meet ASME/ANSI B18.22.1 standards.

Use them for automotive repairs, plumbing, or DIY projects. Their large size provides stronger support under fasteners.

Pros Cons
  • 33PCS Pack for all your project needs, big or small.
  • Rust-Proof 304 Stainless Steel ensures long-lasting durability.
  • Larger Surface Area prevents pull-through and boosts strength.
  • Versatile Use for automotive, plumbing, DIY, and more.
  • Limited quantity: Only 33 pieces per pack.
  • No variety: Single size, no mixed options.
  • Thick design: May not fit all applications.

Perfect For:

These BNUOK 33PCS 5/16″ x 1-1/2″ Fender Washers are perfect for anyone working on automotive repairs, sheet metal projects, plumbing, electrical tasks, or DIY projects. They’re great for preventing pull-through and adding extra strength to your fasteners.

Ready to Purchase?

2. BNUOK 40PCS 1/4″ x 1-1/2″ Fender Washers, 304 Stainless Steel 18-8, Thickened 1/4 Fender Washer,1/4″ ID x 1-1/2″ OD

BNUOK 40PCS 1/4

Get 40pcs fender washers made of strong 304 stainless steel. They are 1/4″ ID × 1-1/2″ OD with a thickness of 0.047 inches. Built to ASME/ANSI B18.22.1 standards for reliable performance.

These washers give extra strength and stop fasteners from pulling through. The large outside diameter spreads force across a wider area. That means more support and durability in every project.

Perfect for automotive repairs and sheet metal work. Also great for plumbing, electrical jobs, and DIY projects.

Pros Cons
  • 40-piece pack for all your project needs.
  • Rust-resistant 304 stainless steel ensures long-lasting durability.
  • Larger surface area prevents pull-through and boosts strength.
  • Versatile use in automotive, plumbing, and DIY projects.
  • Not for heavy-duty industrial use, better for light projects.
  • No variety pack, only one size included in the package.
  • Thicker washers may not fit all standard applications.

Perfect For:

BNUOK 40PCS 1/4″ x 1-1/2″ Fender Washers are perfect for anyone working on automotive repairs, sheet metal projects, plumbing, electrical tasks, or DIY projects. These sturdy washers provide extra support and prevent damage to materials.

Ready to Purchase?

3. Bates- Stainless Steel Fender Washers for Bolts, 1/4″ x1-1/2, 45 pcs, 1/4 Fender Washer

Bates- Stainless Steel Fender Washers for Bolts, 1/4

Bates Stainless Steel Fender Washers are built to last. They come in a pack of 45, perfect for many projects. Each washer is 1/4″ x 1-1/2″, fitting most bolts easily.

Made from premium stainless steel, these washers resist rust and wear. They work well in harsh conditions, ensuring long-term reliability.

The fender design spreads force evenly, protecting surfaces. Ideal for automotive, plumbing, or construction, they deliver a professional finish.

Pros Cons
  • 45-piece pack ensures you have enough for multiple projects.
  • Stainless steel resists rust and lasts in tough conditions.
  • Large surface area prevents damage and distributes load evenly.
  • Versatile size fits many fasteners for easy compatibility.
  • Professional finish for automotive, plumbing, and construction work.
  • Not ideal for very small fasteners
  • Limited size options in this pack

Perfect For:

Perfect for builders, mechanics, and DIY fans who need strong, rust-free support. These washers give extra hold and a clean finish every time.

Ready to Purchase?

4. 30PCS 5/16″ x 1-1/2″ Black Fender Washers, 18-8(304) Stainless Steel Flat Fender Washer for M8 Bolts, 5/16″ ID x 1-1/2″ OD, 0.06” Thick

30PCS 5/16

These 30PCS 5/16″ x 1-1/2″ Black Fender Washers are made of high-quality 304 stainless steel. They have a black zinc coating for strong corrosion resistance. Perfect for lasting performance in any weather.

The washers fit M8 bolts with a 5/16″ ID and 1-1/2″ OD. They are 0.06″ thick and distribute load evenly. Ideal for electrical connections and automotive projects.

Each pack includes 30 washers, offering great value. Save time and money compared to local stores. A must-have for home and garage projects.

Pros Cons
  • Strong 304 stainless steel for lasting use
  • Black zinc coating fights rust and wear
  • Perfect fit for 5/16″ or M8 bolts
  • Distributes load evenly for better performance
  • 30-piece value pack saves time and money
  • Not for heavy-duty use, may bend under extreme pressure.
  • Weak magnetic properties, not ideal for all applications.
  • Black coating may scratch or wear off over time.

Perfect For:

These black fender washers are perfect for DIY enthusiasts and professionals working on automotive, home, or electrical projects. They’re great for anyone needing strong, corrosion-resistant washers for M8 bolts.

Ready to Purchase?

5. [20 Pack] 1/2″ x 1-1/2″ OD Stainless Steel Fender Washer – Choose Size Metal Flat Washers for Bolts (304 Stainless Steel)

[20 Pack] 1/2

Need strong, rust-resistant washers for your projects? These 20 stainless steel fender washers are perfect for indoor and outdoor use.

They’re made of high-quality 304 stainless steel, which resists corrosion. Use them in wood or wet environments for lasting strength.

Pros Cons
  • 20-pack of stainless steel washers for multiple projects.
  • Rust-resistant 304 stainless steel for long-lasting use.
  • Strong and durable for indoor and outdoor applications.
  • High-quality washers ideal for wood and wet environments.
  • Limited quantity for large projects, only 20 washers per pack.
  • No size variety in one pack, must buy separately for different needs.
  • Thicker material may not fit all bolt applications.

Perfect For:

These stainless steel fender washers are perfect for anyone who needs strong, rust-resistant hardware for indoor or outdoor projects. Whether you’re working with wood or in wet environments, these washers will last longer and support all your needs.

Ready to Purchase?

6. Danco 1-1/2 in O.D. Oversize Size Union Washer, 60094Z, 10 Count (Pack of 1)

Danco 1-1/2 in O.D. Oversize Size Union Washer, 60094Z, 10 Count (Pack of 1)

The Danco 1-1/2 in O.D. Oversize Size Union Washer is a durable rubber solution for piping and plumbing. It’s easy to install and built to last.

This washer is 1-1/2 in. O.D., 1 in. I.D., and has a 3/32 wall thickness. Use it where electrically insulated connections are needed.

Pros Cons
  • Strong rubber build for long-lasting use
  • Fits plumbing systems with ease
  • Provides safe insulated connections when needed
  • Quick install saves time and effort
  • Limited size options may not fit all setups
  • Rubber wears out faster under heavy use
  • Not ideal for high-pressure systems

Perfect For:

This product is perfect for plumbers, DIY homeowners, and anyone fixing piping systems who needs a strong, easy-to-install washer that keeps connections secure and insulated.

Ready to Purchase?

7. 15PCS 1/2″ x 1-1/2″ Fender Washers, 18-8(304) Stainless Steel Flat Fender Washer, 1/2″ ID x 1-1/2″ OD, 0.1” Thick

15PCS 1/2

Strong, solid, and built to last. These fender washers measure 1/2″ ID x 1-1/2″ OD with a 0.1″ thickness. Perfect fit for 1/2 bolts and M12 bolts.

Made from 304 stainless steel, they fight off rust and wear. They hold up in high heat, cold weather, and tough environments. Expect long-lasting strength every time.

Use them for electrical connections or automotive projects. Get 15 pieces in one pack. Save time and money with this great value.

Pros Cons
  • 15-piece pack offers great value for your money.
  • 304 stainless steel ensures long-lasting rust resistance.
  • Fits 1/2″ and M12 bolts for versatile use.
  • Widely used in home, auto, and electrical projects.
  • Limited to specific bolt sizes (1/2″ and M12).
  • May show weak magnetic properties due to 304 stainless steel.
  • Not suitable for extreme magnetic applications.

Perfect For:

These 15PCS 1/2″ x 1-1/2″ Fender Washers are perfect for DIY enthusiasts and professionals who need reliable, rust-resistant parts for home, automotive, or electrical projects. Made of high-quality 304 stainless steel, they’re ideal for anyone looking to save time and money with a durable, long-lasting solution.

Ready to Purchase?

8. BNUOK 35PCS 1/2″ x 1-1/2″ Fender Washers, 304 Stainless Steel 18-8, Thickened 1/2 Fender Washer,1/2″ ID x 1-1/2″ OD

BNUOK 35PCS 1/2

These BNUOK 35PCS fender washers protect your fasteners. Made of strong 304 stainless steel.

Each washer is thick and resists rust. They spread pressure and stop bolts from pulling through. Use them for cars, metal, plumbing, and DIY.

Pros Cons
  • 35-piece pack for all your project needs.
  • Rust-resistant 304 stainless steel ensures long-lasting use.
  • Larger surface area prevents pull-through and adds strength.
  • Versatile for automotive, plumbing, and DIY tasks.
  • Limited quantity: Only 35 pieces per package.
  • No variety: Single size, no options for different needs.
  • Thick design: May not fit all applications due to thickness.

Perfect For:

Perfect for DIY enthusiasts, mechanics, and professionals, these BNUOK 35PCS 1/2″ x 1-1/2″ Fender Washers are ideal for anyone working on automotive repairs, sheet metal projects, plumbing, or electrical tasks. Their rust-resistant 304 stainless steel and large size make them a reliable choice for heavy-duty applications.

Ready to Purchase?

9. Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer, Red

Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer, Red

The Keeney 50879TPRUK is a 1-1/2-inch rubber tailpiece washer. It is made of TPR rubber for durability. This washer ensures a leak-free connection.

It is designed for use with a tailpiece and strainer. The red color makes it easy to identify. This washer is a simple yet essential plumbing component.

Install it easily for a secure fit. It helps prevent water leaks effectively.

Pros Cons
  • Stops leaks fast and easy
  • Strong TPR rubber for lasting use
  • Fits 1-1/2-inch tailpieces perfectly
  • Works with tailpiece and strainer setups
  • Limited to specific tailpiece sizes, not a universal fit.
  • Red color may stand out, not ideal for all setups.
  • Rubber material can wear out faster under heavy use.

Perfect For:

This Keeney 50879TPRUK 1-1/2-Inch Rubber Tailpiece Washer is perfect for anyone fixing a leaky sink. It’s easy to use and works great with tailpieces and strainers.

Ready to Purchase?

10. Plumb Pak PP25519-20 Beveled Slip Joint Washer, 1-1/2 in, Polyethylene, 1.5 Inch

Plumb Pak PP25519-20 Beveled Slip Joint Washer, 1-1/2 in, Polyethylene, 1.5 Inch

The Plumb Pak PP25519-20 Beveled Slip Joint Washer is made for strength and reliability. With plastic construction and a white finish, it’s built to last.

This pack gives you 20 washers. Each is 1-1/2 inch in size. They are simple, strong, and ready to use.

Pros Cons
  • 20-pack offers great value for multiple projects.
  • Durable plastic ensures long-lasting use.
  • White finish blends seamlessly with fixtures.
  • 1.5-inch size fits standard plumbing needs.
  • Plastic may not be as strong as metal
  • Only fits 1-1/2-inch size pipes
  • White finish can show dirt easily

Perfect For:

This 20-pack washer set is perfect for plumbers, DIY homeowners, and anyone who wants durable, easy-to-use parts for quick pipe repairs. Strong plastic construction and a 1-1/2-inch size make it a reliable fit every time.

Ready to Purchase?

Buying Guide

Finding the right 1-1/2-inch washer is easy with this guide. We’ll help you pick the best one for your needs.

Factors to Consider When Buying 1-1/2-Inch Washers:
– Material: Choose stainless steel for rust resistance or rubber for plumbing. Both are durable and long-lasting.
– Thickness: Thicker washers offer stronger support. Check the thickness to match your project’s needs.
– Size: Ensure the ID (inner diameter) and OD (outer diameter) fit your fasteners. A 1-1/2-inch OD is standard for even force distribution.
– Quantity: Buy in packs to save time and money. Packs range from 10 to 45 pieces.
– Coating: A black zinc coating adds extra corrosion resistance, ideal for outdoor use.
– Standards: Look for washers that meet ASME/ANSI B18.22.1 standards for reliable performance.
– Application: Pick washers for automotive, plumbing, or DIY projects. Some are designed for specific tasks like electrical connections.
– Price: Compare prices to get the best value. Bulk packs often offer great savings.

With these tips, you’ll find the perfect 1-1/2-inch washer for your projects. Upgrade your work with strength and durability today!