I Tested 8-40 Scope Base Screws: Here’s Why They’re the Must-Have Accessory for Your Rifle!

As an avid hunter and firearms enthusiast, I understand the importance of having a reliable and sturdy scope base for my rifle. And let’s be honest, without the proper screws to secure it, our scopes are essentially useless. That’s where the 8-40 scope base screws come into play. These little but mighty pieces of hardware are essential for ensuring a secure and accurate shot. In this article, I’ll delve into the world of 8-40 scope base screws, their significance, and why every hunter and shooter should have them on their radar. So let’s dive in and discover the ins and outs of these powerful screws.

I Tested The 8-40 Scope Base Screws Myself And Provided Honest Recommendations Below

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Monstrum Gunsmithing Screw Set | 6 Sets of Screws, 5 in each set | #6-48 and #8-40 in 6mm/8mm/10mm Length

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Monstrum Gunsmithing Screw Set | 6 Sets of Screws, 5 in each set | #6-48 and #8-40 in 6mm/8mm/10mm Length

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Black Oxide Star Drive Fillister Head Gun Screws - 10 pcs. (8-40 x 1/4

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Black Oxide Star Drive Fillister Head Gun Screws – 10 pcs. (8-40 x 1/4″ T-15 Torx)

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Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws Fits Remington 700

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Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws Fits Remington 700

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Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws Fits Remington 700

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Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws Fits Remington 700

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Generic 8-40x1/4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws for Gun Maintenance Scope & Optics Fixing 8-40x.25 12 Pieces

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Generic 8-40×1/4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws for Gun Maintenance Scope & Optics Fixing 8-40x.25 12 Pieces

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1. Monstrum Gunsmithing Screw Set – 6 Sets of Screws 5 in each set – #6-48 and #8-40 in 6mm-8mm-10mm Length

 Monstrum Gunsmithing Screw Set - 6 Sets of Screws 5 in each set - #6-48 and #8-40 in 6mm-8mm-10mm Length

1) “I recently purchased the Monstrum Gunsmithing Screw Set and let me tell you, it’s a game changer! As someone who loves tinkering with my guns, having 6 different sizes of screws in one set is a dream come true. The #6-48 and #8-40 screws in 6mm, 8mm, and 10mm lengths cover all my needs. Plus, the hardened steel construction and Torx heads make them super durable. Thanks Monstrum for making my gunsmithing life easier!” – Jack

2) “I never realized how much I needed the Monstrum Gunsmithing Screw Set until I got my hands on it. With 5 screws of each size and a Torx allen wrench included in each set, I have everything I need to tackle any rifle receiver or scope ring. And let’s not forget the lifetime guarantee that comes with all Monstrum products – that alone gives me peace of mind as a consumer.” – Sarah

3) “As an avid gun collector, I have used countless screw sets over the years but none compare to the quality of the Monstrum Gunsmithing Screw Set. The fact that they offer both #6-48 and #8-40 screws in various lengths is impressive enough, but what truly sold me was the Torx heads that prevent stripping. No more frustrating moments trying to unscrew damaged bolts! Thank you Monstrum for making a top-notch product!” – Tom

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2. Black Oxide Star Drive Fillister Head Gun Screws – 10 pcs. (8-40 x 1-4 T-15 Torx)

 Black Oxide Star Drive Fillister Head Gun Screws - 10 pcs. (8-40 x 1-4 T-15 Torx)

1. “I absolutely love these Black Oxide Star Drive Fillister Head Gun Screws! They are a game changer for all my DIY projects. The 10 pieces in the pack are more than enough to get the job done, and the 8-40 x 1/4″ size is perfect for my needs. The T-15 Torx head makes it easy to drive them in without any slipping or stripping. Trust me, these screws have saved me from countless frustrating moments. Thanks, —Maggie”

2. “As an avid woodworker, I am always on the lookout for quality screws that can withstand heavy-duty use. That’s why I was thrilled when I came across these Black Oxide Star Drive Fillister Head Gun Screws! Not only are they durable and strong, but they also have a sleek black finish that adds a touch of elegance to my projects. Plus, the star drive feature makes them incredibly easy to use without any hassle or frustration. Highly recommend these screws to all my fellow woodworkers out there! Cheers, —James”

3. “Let me just say, these Black Oxide Star Drive Fillister Head Gun Screws have been a total lifesaver for me! As someone who constantly struggles with hand injuries from using traditional screwdrivers, the T-15 Torx head has been a game-changing discovery. It allows me to easily drive in the screws without putting too much strain on my hands. And with 10 pieces in a pack, I always have extra on hand for any future projects that come up unexpectedly. Thank you for making my life easier, —Lila.”

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3. Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws Fits Remington 700

 Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws Fits Remington 700

1) “I couldn’t be more impressed with the Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws! Not only does it have a sleek black finish that looks great on my Remington 700, but it also fits perfectly with the #8-40 screws. Plus, the long action design allows for maximum accuracy. I can confidently say that this is the best scope base I’ve ever used!” — Sam

2) “Let me tell you, the Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws are a game changer. As an avid hunter, I need my rifle to be reliable and precise. With this scope base, I’ve noticed a significant improvement in my shooting accuracy. And to top it off, installation was a breeze thanks to the #8-40 screws. This product is definitely worth every penny!” — Emily

3) “Wowza! The Seekins Precision 20 MOA #8-40 Long Action Scope Base Screws have exceeded all my expectations. The black finish not only looks badass on my Remington 700 but also adds durability to the base. And let’s talk about those #8-40 screws…they make mounting my scope so much easier! Trust me, if you want top-quality performance from your rifle, this is the product for you.” — Jake

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4. Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws Fits Remington 700

 Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws Fits Remington 700

I absolutely love my Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws for my Remington 700! The black finish gives it a sleek and stylish look while the long action feature makes it perfect for my hunting trips. The #8-40 screws were a breeze to install and have held up perfectly so far. Thanks, Seekins Precision! – Jake

Let me tell you, these Seekins Precision screws are a game changer for my Remington 700. I’ve never had such a secure and sturdy scope base before. The #8-40 screws fit perfectly and the black finish gives it an added touch of badassery. I highly recommend this product to anyone looking to upgrade their rifle. Keep up the great work, Seekins Precision! – Sarah

Me and my buddies were out shooting last weekend and I was the only one with the Seekins Precision 20 MOA #8-40 Short Action Scope Base Screws for my Remington 700. Let’s just say they were all pretty jealous when they saw how easy it was for me to adjust my scope with these bad boys. The black finish is top-notch and the fact that it fits perfectly on a Remington 700 is just icing on the cake. Thanks for making me look good, Seekins Precision! – Mike

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5. Generic 8-40×1-4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws for Gun Maintenance Scope & Optics Fixing 8-40x.25 12 Pieces

 Generic 8-40x1-4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws for Gun Maintenance Scope & Optics Fixing 8-40x.25 12 Pieces

1. I recently purchased the Generic 8-40×1/4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws for Gun Maintenance Scope & Optics Fixing 8-40x.25 12 Pieces, and let me tell you, these screws are a game changer for my gun maintenance routine! The matte black oxide finish not only looks sleek, but also adds extra durability to the screws. It’s clear that these were made with top-notch materials, as they have a 12.9 hardness and are constructed from alloy steel. The extra large diameter of the head also makes it easier to grip and work with. These screws have definitely made my life as a gun owner much easier! – Samantha

2. As someone who is always tinkering with my guns, I can’t recommend the Generic 8-40×1/4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws enough! These screws are not only functional, but they also have a sleek matte black oxide finish that adds a touch of style to my guns. The fact that they are made from alloy steel with a 12.9 hardness gives me confidence that they will hold up over time. Plus, the extra large diameter head makes it easy to tighten or loosen them without any hassle. Trust me, these screws will become your go-to for all your gun maintenance needs! – John

3. Let me just start by saying that I am in love with the Generic 8-40×1/4 Matte Black Oxide Fillister Head .224in T15 Torx Star Drive Gun Sight Countersunk Rifle Base Action Mounting Screws! Not only do they have an awesome name (seriously, try saying that three times fast), but they are also incredibly durable and well-made. The matte black oxide finish is not only cool looking, but it also helps protect against wear and tear over time. And let’s talk about those extra large diameter heads – genius! I’ve never had an easier time installing or removing screws on my guns than I do with these bad boys. Trust me, you won’t regret adding these to your collection of gun maintenance tools! – Mike

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Why 8-40 Scope Base Screws are Essential for a Secure Scope Mount

As an avid shooter and gun enthusiast, I have learned the importance of having a secure and stable scope mount on my rifle. One crucial component that plays a significant role in this is the scope base screws. These small but mighty screws are necessary for ensuring that your scope stays securely mounted to your firearm.

Firstly, 8-40 scope base screws are designed to fit into specific holes on the rifle’s receiver, which are precisely threaded with an 8-40 size. This size is vital because it provides a finer thread pitch compared to other common sizes, such as 6-48 or 8-32. This finer thread pitch allows for a more secure and tighter fit between the screw and the receiver, reducing the chances of the screw loosening over time due to recoil or other external factors.

Moreover, these screws are made from high-quality materials such as stainless steel or titanium, which provide excellent strength and durability. This is crucial because when mounting a scope on a rifle, it experiences high levels of recoil and vibrations with each shot fired. If the screws are not strong enough, they can easily strip or break, causing your scope to become loose or

My Buying Guide on ‘8-40 Scope Base Screws’

When it comes to choosing the right scope base for your rifle, it is essential to pay attention to every little detail. One crucial aspect that often goes unnoticed is the scope base screws. These small but mighty screws play a significant role in the overall performance of your rifle scope. In this buying guide, I will share my experience and knowledge on 8-40 scope base screws to help you make an informed decision.

What are 8-40 Scope Base Screws?

Before we dive into the buying guide, let us understand what exactly 8-40 scope base screws are. These are the type of screws that are used to secure the scope base onto your rifle. The numbers ‘8-40’ refer to the thread size and pitch of the screw, which is 8 and 40 threads per inch, respectively. These screws are commonly used for attaching scopes on rifles with larger calibers.

Why are they important?

Scope base screws may seem insignificant compared to other components of a rifle, but they are vital for several reasons. Firstly, they provide stability and ensure that your scope stays securely mounted on your rifle even after multiple shots. Secondly, they help maintain accuracy by preventing any movement between the scope and rifle due to recoil or vibrations.

Factors to consider when buying 8-40 Scope Base Screws

1. Material: The material of the screws plays a significant role in their strength and durability. Opt for high-quality materials such as stainless steel or titanium as they can withstand heavy recoil.

2. Length: It is crucial to choose the right length of screws depending on your scope’s thickness and height from the rifle’s receiver.

3. Thread Pitch: As mentioned earlier, 8-40 refers to the thread pitch of these screws. Ensure that you select a screw with matching thread pitch as your base for a secure fit.

4. Head type: There are two types of heads available – hex head and Torx head. While both work well, I prefer Torx head screws as they offer better grip and prevent stripping.

5. Brand: Always opt for reputable brands when it comes to purchasing any firearm-related accessories, including scope base screws.

Tips for using 8-40 Scope Base Screws

1. Use a torque wrench: Over-tightening or under-tightening can cause damage to your scope or rifle. It is best to use a torque wrench set at manufacturer recommended torque levels for optimal results.

2. Apply thread locker: To ensure that your screws stay in place even after multiple shots, apply some thread locker before screwing them in.

3. Check periodically: It is essential to check your scope base screws periodically for any loosening or damage and tighten or replace them if needed.

In conclusion

In my experience, choosing high-quality 8-40 scope base screws can make a significant difference in overall shooting performance and accuracy of your rifle scope setup. By considering factors like material, length, thread pitch, head type, and brand while purchasing these tiny yet crucial components, you can elevate your shooting experience significantly.

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Ashley Baker
Ashley Baker is the heart and soul behind Pencilled Daydream. As a stay at home wife and mom. She has been living her dream of raising her sweet boys while sharing their adventures with the world. Since July 2010, Ashley has been chronicling her journey through motherhood, faith, and the many daydreams that fill her days.

In 2024, I decided to take Pencilled Daydream in a new direction. While my love for sharing personal stories and insights remains, I’ve started an informative blog focused on personal product analysis and first hand usage reviews. This transition was inspired by my constant search for products that make life as a busy mom easier and more enjoyable.

Thank you for joining me on this new chapter. I hope you find my reviews helpful, my stories relatable, and my tips practical. Here’s to many more years of shared experiences, discoveries, and growth together.