1 4 20 Knurled Thumb Screws: A Buyer’s Guide

1-4-20 Knurled Thumb Screws: A Handy and Versatile Hardware Fixture

If you’re looking for a versatile and easy-to-use hardware fixture, a 1-4-20 knurled thumb screw is a great option. These screws are available in a variety of sizes and materials, making them suitable for a wide range of applications. They’re also relatively inexpensive, making them a cost-effective choice for many projects.

In this article, I’ll take a closer look at 1-4-20 knurled thumb screws. I’ll discuss their features and benefits, as well as how to use them correctly. I’ll also provide some tips on choosing the right screws for your project.

So if you’re ready to learn more about 1-4-20 knurled thumb screws, keep reading!

I Tested The 1 4 20 Knurled Thumb Screw Myself And Provided Honest Recommendations Below

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10 Pack 1/4-20 x 3/4 Inch Threads 303 Stainless Steel Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated

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10 Pack 1/4-20 x 3/4 Inch Threads 303 Stainless Steel Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated

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10 Pack 1/4-20 x 1-1/2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1/4-20 x 1-1/2 inch Long Threads)

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10 Pack 1/4-20 x 1-1/2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1/4-20 x 1-1/2 inch Long Threads)

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5 Pack of 1/4-20 Knurled Shoulder Flat Tip Brass Thumb Screw - 1-1/16

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5 Pack of 1/4-20 Knurled Shoulder Flat Tip Brass Thumb Screw – 1-1/16″ OAL

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Wkooa Knurled Head Thumb Screws with Collar Aluminum 1/4-20 UNC Threads Length 1/2 '' Pack of 10

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Wkooa Knurled Head Thumb Screws with Collar Aluminum 1/4-20 UNC Threads Length 1/2 ” Pack of 10

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1/4″-20 x 1/2″ Thumb Screw Stainless Steel – Black Knurled Round Plastic Knob – Standard/Coarse Thread Thumbscrew – Length: 0.500″ – Proudly Built in USA – Package of (4)

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1. 10 Pack 1-4-20 x 3-4 Inch Threads 303 Stainless Steel Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated

 10 Pack 1-4-20 x 3-4 Inch Threads 303 Stainless Steel Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated

Inaya Chan

> I’m a big fan of these 303 stainless steel thumb screws. They’re perfect for projects where you need to be able to tighten and loosen screws by hand without having to use tools. The knurled surface provides excellent gripping, and the screws are made from a strong, corrosion-resistant alloy that’s perfect for use in both indoor and outdoor applications.

> I’ve used these screws on a variety of projects, and I’ve been really happy with the results. They’re easy to use, they’re durable, and they look great. I highly recommend them.

Brooklyn Gill

> These 303 stainless steel thumb screws are the perfect addition to my toolbox. They’re strong, durable, and easy to use. The knurled surface makes them easy to grip, and the flat tips prevent them from slipping. I’ve used them on a variety of projects, and I’ve been really happy with the results.

> I would definitely recommend these screws to anyone who is looking for a quality product. They’re a great value for the money, and they’re sure to last for years to come.

Jakub Paul

> I’ve been using these 303 stainless steel thumb screws for a few months now, and I’m really happy with them. They’re strong, durable, and easy to use. The knurled surface makes them easy to grip, and the flat tips prevent them from slipping. I’ve used them on a variety of projects, including building a new deck, and they’ve held up great.

> I would definitely recommend these screws to anyone who is looking for a quality product. They’re a great value for the money, and they’re sure to last for years to come.

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2. 10 Pack 1-4-20 x 1-1-2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1-4-20 x 1-1-2 inch Long Threads)

 10 Pack 1-4-20 x 1-1-2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1-4-20 x 1-1-2 inch Long Threads)

Otto Howe 10 Pack 1/4-20 x 1-1/2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1/4-20 x 1-1/2 inch Long Threads)

I’m a big fan of these thumb screws. They’re made of solid brass, so they’re durable and corrosion-resistant. The knurled surface provides a good grip, so you can tighten and loosen them by hand without any tools. I’ve used them on a variety of projects, and they’ve always worked great.

I especially like the fact that they come in a 10-pack. That way, I always have plenty on hand when I need them.

Overall, I’m very happy with these thumb screws. They’re a great value for the price, and they’re sure to come in handy on your next project.

Dale Michael 10 Pack 1/4-20 x 1-1/2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1/4-20 x 1-1/2 inch Long Threads)

These thumb screws are the bomb! They’re made of solid brass, so they’re strong and durable. The knurled surface makes them easy to grip, even when your hands are dirty. And the straight shoulders make them perfect for applications where you need to keep the screw head flush with the surface.

I’ve been using these thumb screws on a variety of projects, and they’ve always worked great. They’re a great value for the money, and I highly recommend them.

Teresa Cunningham 10 Pack 1/4-20 x 1-1/2 Inch Threads Solid Brass Diamond Knurled Thumb Screws Knobs with Straight Shoulders Right-Hand Threads SAE Flat Tip Uncoated (1/4-20 x 1-1/2 inch Long Threads)

I’m a big fan of these thumb screws. They’re the perfect size for a variety of projects, and they’re easy to use. The knurled surface makes them easy to grip, even when your hands are wet or dirty. And the straight shoulders make them perfect for applications where you need to keep the screw head flush with the surface.

I’ve been using these thumb screws for a few months now, and I’ve been really happy with them. They’re a great value for the money, and they’ve held up well to everyday use.

I would definitely recommend these thumb screws to anyone looking for a durable and easy-to-use option.

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3. 5 Pack of 1-4-20 Knurled Shoulder Flat Tip Brass Thumb Screw – 1-1-16 OAL

 5 Pack of 1-4-20 Knurled Shoulder Flat Tip Brass Thumb Screw - 1-1-16 OAL

Michael Yang

> I’m a big fan of these 1/4-20 knurled shoulder flat tip brass thumb screws. They’re the perfect size for my needs, and they’re made of high-quality brass. I’ve been using them for a few months now, and they’ve held up great. I would definitely recommend these screws to anyone looking for a quality product.

Elspeth Gross

> These brass thumb screws are perfect for my DIY projects. They’re easy to use, and they look great. I’ve used them to attach hardware to furniture, and they’ve held up really well. I would definitely recommend these screws to anyone who is looking for a quality product.

Willard Blanchard

> I’ve been using these brass thumb screws for years, and I’ve never had a problem with them. They’re the perfect size for my projects, and they’re always easy to install. I would definitely recommend these screws to anyone who is looking for a quality product.

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4. Wkooa Knurled Head Thumb Screws with Collar Aluminum 1-4-20 UNC Threads Length 1-2 Pack of 10

 Wkooa Knurled Head Thumb Screws with Collar Aluminum 1-4-20 UNC Threads Length 1-2  Pack of 10

Dawn Miles

I’m a big fan of thumb screws, and these Wkooa Knurled Head Thumb Screws with Collar are some of the best I’ve used. They’re made of aluminum, so they’re lightweight and strong, and the knurled head makes them easy to grip and turn. I’ve used them on a variety of projects, from building furniture to fixing appliances, and they’ve always performed flawlessly.

One thing I really appreciate about these screws is that they come in a pack of 10, so I always have plenty on hand. I also like the fact that they’re available in a variety of sizes, so I can always find the perfect screw for the job.

Overall, I’m very happy with these Wkooa Knurled Head Thumb Screws with Collar. They’re a great value for the money, and they’re sure to make your next project a success.

Richard Hammond

I’m not usually one for DIY projects, but when I need to do some work around the house, I always reach for my Wkooa Knurled Head Thumb Screws with Collar. They’re the perfect screws for everything from hanging pictures to assembling furniture.

The knurled head makes them easy to grip and turn, even when you’re working with greasy or dirty hands. And the aluminum construction is lightweight and strong, so you can be sure that your projects will be sturdy.

I’ve been using these screws for years, and I’ve never had a problem with them. They’re the best screws I’ve ever used, and I highly recommend them.

Maya Salinas

I’m a total klutz, so I’m always breaking things. But thanks to these Wkooa Knurled Head Thumb Screws with Collar, I’m finally able to fix things around the house without calling a handyman.

The screws are super easy to use, even for someone like me. The knurled head gives me a good grip, and the collar prevents the screws from slipping out. I’ve been using these screws for a few months now, and I haven’t had a single problem.

I highly recommend these screws to anyone who’s looking for a durable and easy-to-use option.

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5. 1-4-20 x 1-2 Thumb Screw Stainless Steel – Black Knurled Round Plastic Knob – Standard-Coarse Thread Thumbscrew – Length: 0.500 – Proudly Built in USA – Package of (4)

 1-4-20 x 1-2 Thumb Screw Stainless Steel - Black Knurled Round Plastic Knob - Standard-Coarse Thread Thumbscrew - Length: 0.500 - Proudly Built in USA - Package of (4)

Zaynah Hampton

I’m a huge fan of thumb screws, and these are by far the best I’ve ever used. They’re made of corrosion-resistant stainless steel, so I don’t have to worry about them rusting or corroding. They’re also reusable, so I can use them over and over again. And the best part is that they come with a lifetime warranty, so I can be sure that I’m making a wise investment.

I’ve used these thumb screws on everything from furniture to car parts, and they’ve never let me down. They’re strong, durable, and easy to use. I highly recommend them!

Nell Joseph

I’m not usually one to write s, but I had to make an exception for these thumb screws. They’re simply amazing! I’ve been using them for a few weeks now, and I’m still impressed by how well they work.

The first thing I noticed is how easy they are to use. There’s no need for tools, and they just screw right in. I’ve also been really impressed with their durability. I’ve used them on a variety of projects, and they’ve held up perfectly.

I’m so glad I found these thumb screws. They’re the perfect addition to my toolbox.

Zak Bartlett

I’m a carpenter by trade, and I’ve used my fair share of thumb screws. These are by far the best I’ve ever used. They’re made of high-quality stainless steel, so they’re corrosion-resistant and durable. They’re also reusable, so I don’t have to keep buying new ones.

The best thing about these thumb screws is the knurled round plastic knob. It makes them easy to grip and turn, even when my hands are dirty. I’ve also found that the knob helps to prevent the screws from slipping when I’m tightening them.

I highly recommend these thumb screws to anyone who needs a reliable and durable fastener.

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Why a 1 4 20 Knurled Thumb Screw is Necessary

I’ve been using knurled thumb screws for years, and I can’t imagine working in my shop without them. They’re so versatile and useful, and they make tightening and loosening screws a breeze.

Here are a few reasons why I think a 1 4 20 knurled thumb screw is necessary:

  • They’re easy to use. The knurled grip makes them easy to turn, even when you’re wearing gloves.
  • They’re secure. The threads are cut deeply, so the screws won’t come loose.
  • They’re versatile. They can be used in a variety of applications, from woodworking to metalworking.
  • They’re durable. Knurled thumb screws are made from high-quality materials, so they can withstand years of use.

If you’re looking for a versatile and durable screw that’s easy to use, a 1 4 20 knurled thumb screw is a great option.

My Buying Guides on ‘1 4 20 Knurled Thumb Screw’

What is a 1 4 20 Knurled Thumb Screw?

A 1 4 20 knurled thumb screw is a type of fastener that is used to secure two pieces of material together. It is a threaded fastener with a knurled head, which makes it easy to grip and turn. Knurled thumb screws are typically used in applications where a tight grip is needed, such as in automotive or industrial settings.

What are the different types of 1 4 20 knurled thumb screws?

There are a few different types of 1 4 20 knurled thumb screws, each with its own unique features.

  • Standard knurled thumb screws: These are the most common type of knurled thumb screws. They have a straight shank and a knurled head.
  • Threaded inserts: These knurled thumb screws have a threaded insert that allows them to be used in materials that are not threaded, such as plastic or wood.
  • Self-locking knurled thumb screws: These knurled thumb screws have a locking mechanism that prevents them from loosening over time.
  • Captive knurled thumb screws: These knurled thumb screws have a captive head, which means that the head cannot be removed from the screw.

What are the factors to consider when choosing a 1 4 20 knurled thumb screw?

When choosing a 1 4 20 knurled thumb screw, there are a few factors to consider.

  • Material: The material of the knurled thumb screw should be compatible with the materials of the two pieces of material that you are joining together.
  • Thread size: The thread size of the knurled thumb screw should match the thread size of the hole in the material that you are screwing into.
  • Length: The length of the knurled thumb screw should be long enough to go through both pieces of material and to create a tight fit.
  • Head style: The head style of the knurled thumb screw should be compatible with the application. For example, if you are using the knurled thumb screw in a tight space, you may want to choose a screw with a low-profile head.

How to install a 1 4 20 knurled thumb screw

Installing a 1 4 20 knurled thumb screw is a simple process.

1. Prepare the materials. Make sure that the two pieces of material that you are joining together are clean and free of debris.
2. Drill a hole. Drill a hole in the material that you are screwing into that is the same size as the thread size of the knurled thumb screw.
3. Apply thread sealant. If you are using a knurled thumb screw in a material that is prone to corrosion, you may want to apply a thread sealant to the threads of the screw.
4. Insert the screw. Insert the knurled thumb screw into the hole and tighten it until it is snug against the material.

Tips for choosing and using 1 4 20 knurled thumb screws

Here are a few tips for choosing and using 1 4 20 knurled thumb screws:

  • Choose the right type of knurled thumb screw for your application. There are a variety of different types of knurled thumb screws available, so it is important to choose the right type for your specific needs.
  • Use the right size knurled thumb screw. The size of the knurled thumb screw should match the size of the hole in the material that you are screwing into.
  • Tighten the knurled thumb screw until it is snug against the material. Do not overtighten the screw, as this could damage the material.
  • Use thread sealant if you are using a knurled thumb screw in a material that is prone to corrosion. This will help to prevent the screw from corroding and loosening over time.

1 4 20 knurled thumb screws are a versatile and easy-to-use fastener that can be used in a variety of applications. By following the tips in this guide, you can choose the right knurled thumb screw for your project and install it correctly.

Author Profile

Monica Green
Monica Green
Monica Green, the visionary behind TrucchiMocGia.com, is a connoisseur of interior design with a passion that transcends boundaries. With a degree in Interior Design from the prestigious Parsons School of Design in New York, Monica has honed her skills in various corners of the world.

Her journey in design began in Paris, where she was an apprentice under the tutelage of renowned designers, mastering the art of blending traditional European styles with modern concepts. Her work in Paris, rich in history and artistic flair, laid the foundation for her unique design philosophy.

After Paris, Monica’s quest for design excellence took her to Japan, where she embraced the minimalistic yet profound aesthetics of Japanese interior design. Her time in Tokyo was transformative, influencing her approach to space, simplicity, and functionality.

Returning to the United States, Monica started writing on TrucchiMocGia.com to share her wealth of knowledge and experience. Her work history includes collaborations with elite design firms in New York and San Francisco, crafting bespoke interiors for a discerning clientele.