Best Screws For Fiberglass Repairs!

Stainless Deck Screws

Are you doing a project that requires you to screw something into or onto fiberglass? If so, there are some things you’ll want to know in order to do your project safely and correctly. One of the most important things you’ll want to know is what screws to use and which to avoid. With this list of the best screws for fiberglass, you’ll be able to easily avoid buying screws that break, rust quickly, or require expensive power tools to use.

If you’re ready to find the best screws for fiberglass, keep reading! We’ll tell you everything you need to know to keep you safe and make an informed decision about 10 of the top options on the market. Learn more below.

Best Screws for Fiberglass FAQ

Before you start your project, you should probably have a basic working knowledge of its do’s and don’ts. Additionally, in order to use them safely, you’ll want to learn more about the materials you are using. If you have any questions at all, don’t skip this section–you may find the answers below! Keep reading for some of the most frequently asked questions about finding and using the best screws for fiberglass.

1. What Is Fiberglass?

In order to determine which screws are the best screws for fiberglass, you’ll want to understand exactly what fiberglass is. Fiberglass is reinforced plastic, made up of glass fibers that get embedded in a type of resin. This results in a material that’s stronger than traditional glass and is much more shatter-resistant. Many people use fiberglass for insulation in their homes or around fireplaces because it’s not considered a fire hazard.

2. Why Can’t I Use Regular Screws for Fiberglass?

It’s important to note that screws are not a one-size-fits-all product: there are many different types of screws, in many different sizes, meant for a wide variety of materials. One of the biggest mistakes we see from people working with specific materials like fiberglass is a lack of knowledge–if you use the wrong kind of screw for your project, the results could be disastrous.

Take a look at your local hardware store and you’ll see screws specified for wood, metal, and more. If a screw isn’t meant for fiberglass, only for glass itself, don’t use it.

The reason you don’t want to use screws on the incorrect materials is that it could damage the screw, material, or, in some cases, both. Not only do you risk cracking the material or shattering it, but you could strip the screw itself, making it impossible to use. Choosing the right screws can save you money and a lot of time in the long run.

3. What Features Should I Look for?

When you take a look at all of the products we review below, you may be wondering which features are most important to your project. We always recommend starting with the size and weight of the materials and hold you’re looking to achieve.

If you’re using these screws to hold up a heavy fiberglass panel, look for screws whose packaging mentions durable holds and sharp, gripping threads. After all, they’ll be completely different from screws used in putting together furniture or mounting a photo frame.

Another thing to keep in mind is the final appearance. Will you be painting over your screw heads? If you don’t want to spend the extra money, you may want to opt for materials like stainless steel that look attractive and won’t rust over time.

4. What Additional Tools Do I Need?

If you want to avoid taking multiple trips to the store, interrupting your project, make sure you have all of the tools and supplies you need before you start. Screws and the tools required to use them can easily throw a project off the rails if they’re not chosen properly. Some screws state that, due to their design, they don’t need to be pre-threaded or drilled in order to screw into the wall. Other screws specify that they work best with hand-drills or other power tools.

Keep the tool type in mind, as well as the bit you will need to actually screw the screw in. Some of the screws we’ll review today come with the bit needed; however, many do not. If tools are an issue for you, you can find packs that come with everything included!

5. Does Size Matter?

One of the questions we see all the time is the question of size when it comes to the best screws for fiberglass. If you’re installing something with pre-drilled holes, make sure you use the screw size the instructions specify for the safest and strongest hold. Size really does matter when you’re working with a large or heavy piece.

Do your research, and don’t be afraid to ask your local hardware store employees what they recommend. If you’re shopping on Amazon, you can use their helpful Q&A portion on product pages to connect with actual customers to gain the best insight!

6. Is Fiberglass Strong?

An important aspect to understand about fiberglass is that it’s a strong and sturdy material. You may read the word “glass” and worry about it shattering into pointy shards, but fiberglass is more similar to wood in that it splinters instead.

Due to fiberglass being so strong, you’ll likely need pre-drilled holes for your screws, maybe a fastener of some type. While you can use bits meant for use with wood, we always recommend that you acquire material-specific supplies in order to get the safest and best-looking outcome.

How We Reviewed the Best Screws for Fiberglass

screw with white background

Image source: Pixabay

When it comes to shopping for materials for a project, we know how annoying it can be to focus on the minuscule details. No one wants to spend an hour of their time figuring out which screws to use. Instead, you want to focus on the final product, which is why we’ve taken the time to review and find the best possible options for you.

We made our selections based upon a number of strict parameters. These parameters included additional features, any obvious pros or cons, price point (per screw), where you can and how easy it is to purchase the screws, the materials, coatings used, and any available warranties; we synthesized these elements into a single, consise, and coherent review.

You may also notice, especially near the end when we pick our winners, that we heavily took the customer reviews on each product into account. Customer reviews help give us an unbiased insight into each product in order to find the best options for a variety of situations and budgets.

Overall Price Range of the Best Screws for Fiberglass

Wallet with magnifying glass

Image source: Pixabay

When it comes to the overall price range of the best screws for fiberglass, you’re going to see options anywhere from $10 to $100. The reason you’re going to see such a range in prices is due to packaging size, screw features, and materials. It goes without saying that the higher the quality, the higher the price point, but this is also true for the strength of the hold.

We found that screws that had sharp threads were higher in price than that of smoother ones. Additionally, when screws can promise invisible fasteners and attractive finishes, it makes them that much more expensive: you won’t need to buy extra materials to help conceal your handiwork.

What We Reviewed

  • Chenango Supply 5 LB 305 Stainless Torx Deck Screw
  • Grip Rite Prime Guard MAXS62704 Type 17 Point Deck Screw
  • SNUG Fasteners (SNG219) 100 Qty #10 x 4 Stainless Steel Fence & Deck Screws
  • SNUG Fasteners (SNG217) 100 Qty #10 x 3 Stainless Steel Fence & Deck Screws
  • PRIMESOURCE CONTNR C P3STGDBK 25# 3″ Star EXT Screw
  • SNUG Fasteners (SNG211) 100 Qty #8 x 2 Stainless Steel Fence & Deck Screws
  • #8 x 1-1/4″ Stainless Deck Screws, (100 Pack) Square Drive, Type 17 Wood Cutting Point, by Bolt Dropper
  • SNUG Fasteners (SNG216) 100 Qty #10 x 2-1/2″ Stainless Steel Fence & Deck Screws
  • Steel Self-Drilling Screw, Zinc Plated Finish, Wafer Head, Star Drive
  • Kreg SML-C250B-125 2-1/2″ Coarse Thread Number 8 Blue Kote Pocket Hole Screws

CHENANGO SUPPLY 5 LB 305 STAINLESS TORX DECK SCREW

Chenango Supply 5 LB 305 Stainless Torx Deck Screw #10 x 3 Flat Head w/Nibs, Type 17 Point, Bit Included (#10x3" 360 PCS)
  • Star drive prevents cam out and stripping for improved driveability.
  • Superior penetration through a variety of woods.
  • High degree of corrosion resistance.
  • Type "17" point reduces wood splitting and nibbed head to helps with countersinking
  • True 5 pounds of #10 x 3 exterior screws with T25 Torx bit included

Features

The Chenango Supply 5 LB 305 Stainless Torx Deck Screw features a star drive head, which prevents stripping and has superior penetration through a wide variety of materials. What customers love about the Chenango screws is their nibbed heads and high degree of corrosion resistance. If you’re looking for the best screws for fiberglass, we recommend trying these out, especially because there is a free bit included!

Price $$$

GRIP RITE PRIME GUARD MAXS62704 TYPE 17 POINT DECK SCREW

Grip Rite Prime Guard MAXS62704 Type 17 Point Deck Screw Number 10 by 2-1/2-Inch T25 Star Drive, Stainless Steel, 5-Pound Tub
  • Type 17 Point Deck Screw
  • 10 by 2-1/2-inch T25 Star Drive
  • 305 Stainless Steel 5 pound tub
  • Model number: MAXS62704

Features

The Grip Rite Prime Guard MAXS62704 Type 17 Point Deck Screw is made of stainless steel and comes in a five-pound tub. One of the best features of this screw is its resistance to rust. Many customers consider these screws an investment that they’ll be able to use over and over again on current and future projects.

Price $$$

SNUG Fasteners (SNG219) 100 Qty #10 X 4 Stainless Steel Fence & Deck Screws

SNUG Fasteners (SNG219) 100 Qty #10 x 4 Stainless Steel Fence & Deck Screws - Square Drive Type 17
  • Premium 305 Corrosion Resistant Stainless Steel
  • Package of 100 Self Tapping Type 17 Screws
  • Bugle Shaped Head For Better Head Concealment
  • Robertson Square Drive Allows For Fast & Easy Installation
  • Sharp Cutting Threads To Provide A Better Long Lasting Hold

Features

The SNUG Fasteners (SNG219) 100 Qty #10 x 4 Stainless Steel Fence & Deck Screws feature stainless steel materials that are both durable and corrosion-resistant. Featuring a bugle-shaped head for optimum concealment, these screws are an ideal choice if you’re looking for something that’s as quick as it is easy to use!

Price $$

SNUG Fasteners (SNG217) 100 Qty #10 X 3 Stainless Steel Fence & Deck Screws

SNUG Fasteners (SNG217) 100 Qty #10 x 3 Stainless Steel Fence & Deck Screws - Square Drive Type 17
  • Premium 305 Corrosion Resistant Stainless Steel
  • Package of 100 Self Tapping Type 17 Screws
  • Bugle Shaped Head For Better Head Concealment
  • Robertson Square Drive Allows For Fast & Easy Installation
  • Sharp Cutting Threads To Provide A Better Long Lasting Hold

Features

The SNUG Fasteners (SNG217) 100 Qty #10 x 3 Stainless Steel Fence & Deck Screws are similar to the screws above, but they are ideal for a square drive, type 17. These screws feature sharp cutting threads that ensure a long-lasting and durable hold regardless of the material.

Price $$

PRIMESOURCE CONTNR C P3STGDBK 25# 3

PRIMESOURCE CONTNR C P3STGDBK 25# 3" Star EXT Screw, 3"
  • Item Weight: 1.0 lb
  • Country of Origin: Taiwan, Province Of China
  • Brand name: PRIMESOURCE CONTNR C
  • Item Dimensions: 9.0"L x 9.0"W x 7.0"H

Features

The PRIMESOURCE CONTNR C P3STGDBK 25# 3″ Star EXT Screw is a great option if you’re looking for a screw you won’t need to pre-drill. These screws feature countersinking bugle heads and a proprietary polymer coating, making them ideal for indoor and outdoor use. Customers who opt for the PRIMESOURCE screws praise them for their lifetime guarantee and certified testing.

Price $$$

SNUG Fasteners (SNG211) 100 Qty #8 X 2 Stainless Steel Fence & Deck Screws

SNUG Fasteners (SNG211) 100 Qty #8 x 2 Stainless Steel Fence & Deck Screws - Square Drive Type 17
  • Premium 305 Corrosion Resistant Stainless Steel
  • Package of 100 Self Tapping Type 17 Screws
  • Bugle Shaped Head For Better Head Concealment
  • Robertson Square Drive Allows For Fast & Easy Installation
  • Sharp Cutting Threads To Provide A Better Long Lasting Hold

Features

Another one of the great screws from SNUG, the SNUG Fasteners (SNG211) 100 Qty #8 x 2 Stainless Steel Fence & Deck Screws are an affordable option for simple projects and tasks. Featuring sharp cutting threads and a Robertson square drive head, these screws are extremely easy to use!

Price $

#8 X 1-1/4

#8 x 1-1/4" Stainless Deck Screws, (100 Pack) Square Drive, Type 17 Wood Cutting Point, by Bolt Dropper, 18-8 (305) Stainless Steel, Hidden Fasteners.
  • HIGH QUALITY STAINLESS: These Stainless Steel Deck Screws are 100% 305 Stainless Steel which is one of the highest forms of corrosion resistant steel, making it last longer than other hardware on the market today.

  • EXTRA HARD HEAD: Our hardware is very strong with heads that do no strip easily. It is great for outdoor and salt water use. The stainless steel is superior to regular steel and provides excellent rust resistance in water applications.

  • SELF TAPPING: No need to pre-drill as these have Type-17 Self Tapping Points made to cut into the hardest woods.

  • DIMENSIONS: Diameter: #8 | Length: 1-1/4" | Thread Type: Coarse (standard) | Point: Type 17 Wood Cutting | Head: Bugle Head | Drive: Square | Quantity: 100 pcs | Material: 18-8 (304) Stainless Steel.
  • LIFETIME GUARANTEE: We are so confident that our product is the best on the market that we offer a NO HASSLE LIFETIME GUARANTEE.

Features

The #8 x 1-1/4″ Stainless Deck Screws, (100 Pack) Square Drive, Type 17 Wood Cutting Point, by Bolt Dropper are available in four different sizes and five distinct styles. What we love about these screws is the fact that they come with hidden fasteners. They feature a stainless steel design that doesn’t have to be painted over once installed. The best part is, these screws come with a lifetime guarantee, which makes the low price point that much more impressive.

Price $

SNUG Fasteners (SNG216) 100 Qty #10 X 2-1/2

SNUG Fasteners (SNG216) 100 Qty #10 x 2-1/2" Stainless Steel Fence & Deck Screws - Square Drive Type 17
  • Premium 305 Corrosion Resistant Stainless Steel
  • Package of 100 Self Tapping Type 17 Screws
  • Bugle Shaped Head For Better Head Concealment
  • Robertson Square Drive Allows For Fast & Easy Installation
  • Sharp Cutting Threads To Provide A Better Long Lasting Hold

Features

The SNUG Fasteners (SNG216) 100 Qty #10 x 2-1/2″ Stainless Steel Fence & Deck Screws are some of the best screws for fiberglass on the market, especially for such an affordable price point. Featuring corrosive resistant coatings and long-lasting hold, you won’t regret buying these screws!

Price $$

Steel Self-Drilling Screw, Zinc Plated Finish, Wafer Head, Star Drive

Steel Self-Drilling Screw, Zinc Plated Finish, Wafer Head, Star Drive, #3 Drill Point, #10-16 Thread Size, 2" Length (Pack of 25)
  • Steel is often used in applications where strength is the primary consideration
  • Zinc plating resists corrosion and has a reflective appearance
  • Wafer head has a flat top, a 70-degree cone-shaped bearing surface, and a small slope between the top and the bearing surface
  • Star drive has a six-pointed indentation that provides a large contact area for the driver, resisting slippage better than a Phillips or slotted drive

Features

The Steel Self-Drilling Screw, Zinc Plated Finish, Wafer Head, Star Drive by Small Parts is one of the few fully-threaded options on our list. Featuring a wafer head and two-inch length, these screws are great if you’re adding a fiberglass panel to a window or shadow box, due to their shape and size. If you’re looking for something more durable, we recommend checking out their longer and thicker screw options.

Price $

Kreg SML-C250B-125 2-1/2

Kreg SML-C250B-125 2-1/2" Coarse Thread Number 8 Blue Kote Pocket Hole Screws (125 Count)
  • Self-tapping tip
  • Case hardened Steel
  • Square drive
  • Flat-bottom head
  • Smooth shank

Features

The Kreg SML-C250B-125 2-1/2″ Coarse Thread Number 8 Blue Kote Pocket Hole Screws feature square drive heads that are flat-bottomed, as well as a smooth shank. The self-tapping tip makes them a perfect choice if you don’t have a drill on hand; it is made of case-hardened steel.

Price $

The Verdict

After taking a look at all 10 different screws above, we have come to a verdict about which one is the best screw for fiberglass. The competition was tough–there were a ton of great options, price points, and features–but we had to pick a winner.

The Winner

screws scattered on the floor

Image source: Pixabay

The #8 x 1-1/4″ Stainless Deck Screws, (100 Pack) Square Drive, Type 17 Wood Cutting Point, by Bolt Dropper are our winners today. Due to their great price, sturdy construction, and quality features, they’re a great choice for a variety of projects. Not only are these screws made of 100% stainless steel, but they also feature some of the strongest forms of corrosion-resistant steel on the market.

#8 x 1-1/4" Stainless Deck Screws, (100 Pack) Square Drive, Type 17 Wood Cutting Point, by Bolt Dropper, 18-8 (305) Stainless Steel, Hidden Fasteners.
  • HIGH QUALITY STAINLESS: These Stainless Steel Deck Screws are 100% 305 Stainless Steel which is one of the highest forms of corrosion resistant steel, making it last longer than other hardware on the market today.

  • EXTRA HARD HEAD: Our hardware is very strong with heads that do no strip easily. It is great for outdoor and salt water use. The stainless steel is superior to regular steel and provides excellent rust resistance in water applications.

  • SELF TAPPING: No need to pre-drill as these have Type-17 Self Tapping Points made to cut into the hardest woods.

  • DIMENSIONS: Diameter: #8 | Length: 1-1/4" | Thread Type: Coarse (standard) | Point: Type 17 Wood Cutting | Head: Bugle Head | Drive: Square | Quantity: 100 pcs | Material: 18-8 (304) Stainless Steel.
  • LIFETIME GUARANTEE: We are so confident that our product is the best on the market that we offer a NO HASSLE LIFETIME GUARANTEE.

Normally, you’d think that with such an affordable price, these screws would strip easily. That couldn’t be farther from the truth–these screws have some of the hardest heads imaginable. These screws simply tick all of the boxes: they are cheap, attractive, high-quality, durable, and come with a lifetime no-hassle guarantee. (They’re self-tapping, to boot!)

This is just one article, though–we wouldn’t blame you for being skeptical. Don’t take our word for it; just look at the hundreds of positive Amazon reviews. There’s a reason why 71% of the Amazon reviews are 5-star: these screws are great. There’s a good spread of reviews overall, too, so you can review any of the issues that other buyers experienced when using these Bolt Dropper beauties.

We’re confident these screws are the right choice, though. One reviewer summed them up perfectly: “These are incredibly well made, bright, and strong screws. They go in very easily because of the special tip design.” No wonder they’re listed as Amazon’s choice!

Conclusion

No matter which screws you decide to use on your fiberglass project, always remember to keep the size and feature list in mind before making your final decision. Any of the options we discussed above will work wonderfully for almost any project, as long as they are used with the right tools and on the right material.

Keep in mind that just because you’re screwing into fiberglass doesn’t mean that’s the only material it’s touching. Make sure the screws you select can be used for all the materials involved in your project and you’ll have no problem making the right choice. Best of luck, and happy drilling!Featured image via Amazon

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