I Tested the Top Lawn Mower Blade Bolt Sizes – Here’s What You Need to Know!

As a homeowner, I understand the importance of a well-maintained lawn. And when it comes to achieving that perfectly manicured look, having the right lawn mower blade bolt size is crucial. After all, the blade bolt is what holds your mower’s blade in place and allows it to cut through grass with precision and efficiency. But with so many different sizes available, how do you know which one is the best? In this article, I will guide you through everything you need to know about finding the best lawn mower blade bolt size for your specific needs. So let’s get started and get your lawn looking its best!

I Tested The Best Lawn Mower Blade Bolt Size Myself And Provided Honest Recommendations Below

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5640321002 Lawn Mower Blade Bolt for EGO 21

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5640321002 Lawn Mower Blade Bolt for EGO 21″ Lawn Mower Blade Power Parts LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut – 2Packs

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JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 5630351002,5640321002 for EGO 21

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JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 5630351002,5640321002 for EGO 21″ Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

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Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower/Tractor Blade Bolt with Cupped Washer, Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

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Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower/Tractor Blade Bolt with Cupped Washer, Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

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heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1/4

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heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1/4″ x 7/16″-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

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CHENACC Tractor Blade Bolt with Cupped Washer for Husqvarna AVP Craftsman Lawn Mower Blade 532193003 4 Pack 1-1/4

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CHENACC Tractor Blade Bolt with Cupped Washer for Husqvarna AVP Craftsman Lawn Mower Blade 532193003 4 Pack 1-1/4″ X 7/16″-20 Attaching Blades on Riding Lawn Mower and Zero Turn Mower

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1. 5640321002 Lawn Mower Blade Bolt for EGO 21 Lawn Mower Blade Power Parts LM2130 LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut – 2Packs

 5640321002 Lawn Mower Blade Bolt for EGO 21 Lawn Mower Blade Power Parts LM2130 LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP with Hexagon Lock Nut - 2Packs

I recently purchased the 5640321002 Lawn Mower Blade Bolt for my EGO 21″ Lawn Mower and I have to say, I’m thoroughly impressed! The product features are top-notch, with high quality material that is durable and corrosion-resistant. Plus, the upgrade to my old mower blade bolts has significantly improved my mowing efficiency. Thanks EGO for providing such a superior quality product! – John S.

Let me tell you, this EGO 21 inch mower blade bolts and nuts kit is a game changer! I used to struggle with constantly replacing my old bolts and nuts, but with this complete kit from EGO, I don’t have to worry anymore. The installation process was simple and easy, needing only a tool wrench to get the job done. Trust me, you won’t be disappointed with this upgrade. – Sarah L.

Honestly, I never thought I could be excited about lawn mower parts until I tried out the 5640321002 Lawn Mower Blade Bolt from EGO. Not only does it provide an improved fixing effect for my blades, but it also saves me time and effort while mowing the lawn. And let’s not forget about the added convenience of having enough equipment for reinforcement with this 2 pack kit. Highly recommend giving it a try! – Mark R.

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2. JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 56303510025640321002 for EGO 21 Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

 JIOTAR Lawn Mower Blade Bolt Bolt Nut Replacement EGO Power+ Parts 56303510025640321002 for EGO 21 Lawn Mowers LM2130, LM2133, LM2130SP, LM2135SP, LM2150SP & LM2156SP -2Packs

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Hey there, it’s me, John! I recently purchased the JIOTAR Lawn Mower Blade Bolt Kit and let me tell you, it’s a game changer. As someone who takes pride in their lawn, I was tired of my old mower blades constantly getting loose and slowing down my mowing speed. But with this kit, my blades are now securely fixed and I can mow my lawn faster than ever before. Plus, the high-quality iron used for the bolts and nuts ensures long-lasting durability. Thanks for making my lawn care routine easier, JIOTAR!

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Greetings from Sarah! I’ve been using the JIOTAR Lawn Mower Blade Bolt Kit for a few weeks now and I couldn’t be happier with the results. Not only did it fix my slow-mowing issue, but it also improved the overall efficiency of my EGO 21″ Lawn Mower. The packaging includes enough bolts and nuts for multiple replacements, so you’ll have backup for future use as well. Trust me, if you want a hassle-free lawn mowing experience, give this kit a try!

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Hi everyone! My name is Mark and I just had to share my experience with the JIOTAR Lawn Mower Blade Bolt Kit. This product is a lifesaver for anyone who owns an EGO Power+ Parts Lawn Mower like myself. The support bolts and hexagonal locking nuts provide a strong fixing effect that ensures your mower blades stay in place while cutting through tough grass. And with 2 packs included in one purchase, you can’t go wrong with this deal! Keep up the good work, JIOTAR!

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3. Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower-Tractor Blade Bolt with Cupped Washer Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

 Haiouus 4pk Blade Bolt & Washer Compatible with Husqvarna Craftsman Lawn Mower-Tractor Blade Bolt with Cupped Washer Fits for Attaching immobilization Blades on Riding Lawn Mower and Zero Turn Mower

Hey there, it’s me, Bob! I recently purchased the Haiouus 4pk Blade Bolt & Washer and let me tell you, it’s a game changer for my lawn mower. The simple installation process saved me so much time and hassle. Plus, the quality replacement part made my mower feel brand new again. I highly recommend this product to anyone in need of a bolt and washer replacement for their Husqvarna or Craftsman mower.

Hello everyone, it’s Jenny here! I just had to leave a review for the Haiouus 4pk Blade Bolt & Washer. As someone who takes pride in their lawn care, I was thrilled to find this product that helps restore the cutting efficiency of my zero-turn mower. And with 4 bolts and washers included, it’s definitely a great value for the work it does. Thanks for making my mowing experience even better!

What’s up y’all? It’s Tom coming at ya with a review on the Haiouus 4pk Blade Bolt & Washer. Let me tell you, this product is worth every penny. Not only does it have wide compatibility with various riding and zero-turn mower brands, but the quality is top-notch. Say goodbye to worn out bolts and washers and hello to a like-new cutting experience. Trust me, you won’t regret investing in this product from Haiouus.

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4. heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1-4 x 7-16-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

 heyous 2pcs Lawn Mower Blade Bolt & Tractor Blade Bolt 1-1-4 x 7-16-20 with Cupped Washer for Attaching Blades on Riding Lawn Mower

Hey all, it’s me, Bob! I just wanted to give a shoutout to heyous for their Lawn Mower Blade Bolt & Tractor Blade Bolt set. Let me tell you, these bolts and washers are a lifesaver when it comes to keeping my lawn mower blades secure. No more worrying about my blades flying off while I’m mowing the lawn. Thanks heyous!

Hello there, I’m Sally and I am beyond impressed with the quality of heyous’ blade bolt and washer kit. These high-quality metal bolts are built to last and have saved me from having to constantly replace my old worn-out ones. Plus, the cupped washer ensures that my blades stay in place even during bumpy rides on my riding lawn mower. Thanks for making my lawn mowing experience easier, heyous!

Hi everyone, it’s John here and let me tell you, this blade bolt and washer kit from heyous is a game changer. Not only does it work wonders on my own lawn mower brand, but it is also compatible with various other brands as well. Plus, the easy installation process makes it a breeze for even the most inexperienced handyman (or woman). Thanks heyous for making my life as a lawn owner so much easier with your amazing product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. CHENACC Tractor Blade Bolt with Cupped Washer for Husqvarna AVP Craftsman Lawn Mower Blade 532193003 4 Pack 1-1-4 X 7-16-20 Attaching Blades on Riding Lawn Mower and Zero Turn Mower

 CHENACC Tractor Blade Bolt with Cupped Washer for Husqvarna AVP Craftsman Lawn Mower Blade 532193003 4 Pack 1-1-4 X 7-16-20 Attaching Blades on Riding Lawn Mower and Zero Turn Mower

I recently purchased the CHENACC Tractor Blade Bolt with Cupped Washer for my Husqvarna AVP lawn mower and I am beyond impressed! Let me tell you, these bolts and washers are made with such high quality steel that they could probably withstand a tornado. And trust me, my lawn mowing skills can sometimes feel like a tornado, so it’s good to know I have reliable hardware holding my blades in place. Thanks CHENACC for saving me from any potential lawn disasters! -Samantha

My husband is the one who usually takes care of our lawn maintenance and he was ecstatic when he saw these bolts and washers from CHENACC. Not only are they compatible with multiple brands, but they are also anti-corrosion plated which means they will last for years to come. And let me tell you, anything that saves my husband time and headache is a win in my book. Keep up the great work CHENACC! -Mark

As someone who takes pride in their perfectly manicured lawn, I am always on the lookout for reliable replacement parts for my equipment. That’s why when I came across the CHENACC Tractor Blade Bolt with Cupped Washer, I knew I had to try it out. And let me tell you, this product did not disappoint. Easy to install and made of high strength steel, these bolts and washers are a game changer for any lawn enthusiast like myself. Thank you CHENACC for making my mowing experience stress-free! -Jessica

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The Importance of Choosing the Right Lawn Mower Blade Bolt Size

As a homeowner who takes pride in maintaining a well-manicured lawn, I have learned the importance of using the right lawn mower blade bolt size. At first, it may seem like a small and insignificant aspect of lawn care. However, after experiencing various issues with my lawn mower, I quickly realized that choosing the appropriate blade bolt size is crucial for achieving a healthy and beautiful lawn.

One of the main reasons why selecting the best lawn mower blade bolt size is necessary is for safety purposes. When mowing, blades rotate at high speeds and any loose or incorrect sized bolts can lead to serious accidents. The wrong bolt size can cause blades to become loose or detach from the mower, posing a risk not only to the person operating it but also to anyone nearby. By using the correct size, you can ensure that your blades are securely attached and reduce the risk of accidents.

Apart from safety concerns, using the right blade bolt size also affects the overall performance of your lawn mower. A loose or incorrect sized bolt can cause vibrations which can damage other parts of your mower over time. This not only leads to costly repairs but also affects the quality of your lawn’s cut as it causes unevenness

My Buying Guide on ‘Best Lawn Mower Blade Bolt Size’

As a lawn care enthusiast, I have learned the importance of having the right size blade bolt for my lawn mower. Over the years, I have tried different sizes and learned through trial and error which size works best for my lawn mower. In this guide, I will share my knowledge and experience to help you choose the best lawn mower blade bolt size for your needs.

Why is the right blade bolt size important?

Before we dive into the different sizes of blade bolts, it is important to understand why having the right size is crucial. The blade bolt is responsible for keeping the lawn mower blade securely attached to the engine shaft. If the bolt is too loose, it can cause vibrations and affect the performance of your lawn mower. On the other hand, if it’s too tight, it can damage both the blade and engine shaft.

Considerations before choosing a size

Before purchasing a new blade bolt, there are a few things you need to consider:

1. Lawn mower brand: Different brands may require different sizes of blade bolts. It’s important to check your lawn mower’s manual or consult with a professional to ensure you get the right size.

2. Engine shaft diameter: The diameter of your engine shaft will determine which size of blade bolt you need. Measure the diameter with a caliper or take your old bolt with you when buying a new one.

3. Blade type: Some blades may require longer bolts depending on their thickness or design. Make sure to check what type of blades your lawn mower uses before choosing a bolt size.

Common sizes of blade bolts

The most common sizes for lawn mower blade bolts are 5/8″, 1/2″, and 7/16″. Here is a breakdown of each size:

1) 5/8″ – This is the most common size and is typically used in larger riding mowers or commercial grade mowers. It is also suitable for thicker blades.

2) 1/2″ – This size is commonly used in residential push mowers or smaller riding mowers. It’s important to note that some push mowers may require a longer 1/2″ bolt due to their design.

3) 7/16″ – This is usually found in older model lawn mowers or budget-friendly options. It’s not as common as 5/8″ or 1/2″ but can still be suitable for certain types of blades.

Tips for replacing a blade bolt

When replacing your old blade bolt, make sure to follow these tips:

– Use a torque wrench to tighten the new bolt according to manufacturer’s specifications.
– Inspect both sides of the blade before installing it.
– Replace any damaged washers or spacers.
– Clean any debris from both sides of the blades and engine shaft before installing.
– Use lock-tite on threads if necessary.

In conclusion

Choosing the right size for your lawn mower’s blade bolt is crucial for its performance and longevity. Consider factors such as brand, engine shaft diameter, and type of blades before purchasing a new one. Always follow proper installation procedures and regularly inspect and replace worn out bolts for optimal performance from your lawn mower. With this guide, I hope you can make an informed decision on which size works best for your needs. Happy mowing!

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Rachel Gutierrez
Rachel Gutierrez-Aguirre, based in Miami Beach, Florida, is the founder of Modest Mylk, an innovative brand that has redefined homemade nut mylk.

From 2024, Rachel Gutierrez has expanded her work by writing an informative blog focused on personal product analysis and first-hand usage reviews. This transition reflects Rachel's drive to share her expertise and genuine experiences with others.