Shoulder Bolts

Lift your product knowledge to the next level with our in-depth roundup of the top Shoulder Bolts on the market. Explore the features, pros, and cons of these versatile fasteners and discover why they’re a must-have in your toolbox.

The Top 10 Best Shoulder Bolts

1. Authentic Agri-Fab 3/8 inch Shoulder Bolt for Deck Repair — Experience unparalleled durability and performance with the authentic Genuine Agri-Fab 48106 3/8 inch-16 x .09 inch Hex Shoulder Bolt, perfect for any demanding lawn care job in just minutes without assembly, thanks to Agri-Fab’s commitment to quality.
2. Stainless Steel 5mm x 20mm Shoulder Bolt for Injection Accessories — Harfington’s 5mm x 20mm Stainless Steel Shoulder Bolt offers durability and resistance with its socket cap head and hex socket drive, perfect for use in various industrial applications.
3. Oregon 2 1/2" Shoulder Bolt for 38" Deck and Front Wheels — Secure your Oregon 04–163 Shoulder Bolt on a 38" deck and front wheels of a 46" deck to ensure reliable and long-lasting mower performance.
4. Stainless Steel Shoulder Bolt for Industrial Applications — A robust and corrosion-resistant Shoulder Bolt, ideal for use in various industries and applications, thanks to its socket cap head and hex socket drive features.
5. Husqvarna 5/16–18 BOLT.SHOULDER for Bolts and Fasteners — Experience exceptional performance from Husqvarna’s O.E.M. authorized 5/16–18 Unc shoulder bolt, designed to perfectly fit and function with various lawn mower and lawn tractor models.
6. Heavy-Duty Steel Shoulder Bolt for Various Industrial Applications — Experience unparalleled performance and durability with the Harfington 10pcs 40Cr Steel Shoulder Bolt, perfect for a variety of applications in the textile, hydraulics, and machinery industry.
7. Dayton Pivot Shoulder Bolt Lock Nut (Fits Grainger Item #6W050B) — Secure your installation with Dayton PSB-050 Pivot Shoulder Bolt and Lock Nut, designed for compatibility with Grainger item numbers 6W050B and 4ZJ34B.
8. Stainless Steel Shoulder Bolt for Versatile Applications — Durable, versatile, and resistant 8mm x 20mm Stainless Steel Hex Shoulder Bolt for various industrial applications — 5pcs set included!
9. High-Quality Carbon Steel 5/8 Shoulder Bolt with 5/8–11 Thread Size — The Williams EB-27T 5/8" shoulder eye bolt is a high-strength, carbon steel bolt designed for increased durability and reduced liability, offering 4 3/4-inch length and secure seating to ensure no unscrewing due to cable twist.
10. Prime Line 7–04360 Universal Shoulder Bolt — Elevate your engine performance with the Prime Line 7–04360 Shoulder Bolt — secure, reliable, and designed for even the toughest oil and gas accessories.

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Reviews

Authentic Agri-Fab 3/8 inch Shoulder Bolt for Deck Repair

Experience the unbeatable quality of an Agri-Fab 3/8 inch-16 x. 09 inch Hex Shoulder Bolt. As promised, this bolt is genuine, ensuring you get the highest quality parts for your lawn care needs. With no assembly required, you can trust that your experience will be hassle-free.

While consulting your user manual for parts blow-out diagrams is always recommended, you can’t go wrong with this authentic Agri-Fab part. So, put your trust in the USA-made product and enjoy the convenience it brings to your lawn care routine — all with a perfect 5.0-star rating from other satisfied customers.

Stainless Steel 5mm x 20mm Shoulder Bolt for Injection Accessories

The Harfington shoulder bolt is a versatile component designed for various industrial applications. Boasting a 304 stainless steel body, it offers optimal corrosion resistance and durability, ensuring long-lasting performance. The socket cap head and hex socket drive features make it easy to install and handle.

It effectively reduces rotation through locking mechanisms, perfect for use in textile, hydraulic, injection, and machinery-related projects. While domestic shoulder bolts may have a better quality reputation, the Harfington shoulder bolt’s affordable price point is alluring for many users. Although some customers have reported receiving the wrong product or no product at all, the overall positive reviews showcase its popularity and high-quality craftsmanship.

Oregon 2 1/2" Shoulder Bolt for 38" Deck and Front Wheels

I’ve been using the Oregon 04–163 Shoulder Bolt for a while now, and it has certainly impressed me with its performance. The fit is perfect for my 38-inch deck and front wheels on a 46-inch deck, ensuring the mower runs smoothly. I especially appreciate that it comes with the Oregon 72–094, which ensures proper fit and performance for the life of the equipment.

However, one downside I’ve noticed is the size of the product. The packaging might be a bit smaller than I expected, but it still gets the job done. Overall, the Oregon 04–163 Shoulder Bolt is an excellent choice for anyone looking to maintain their equipment’s performance and longevity.

Stainless Steel Shoulder Bolt for Industrial Applications

This versatile Stainless Steel Shoulder Bolt is an essential tool that offers durability and resistance to corrosion, thanks to its 304 stainless steel composition. Designed with a socket cap head and hex socket drive, this bolt can securely reduce rotation through locking, making it a go-to option for textile, hydraulic, and machinery industries in a variety of applications.

Perfect for injection accessories, this high-quality product is a must-have in any toolbox.

Husqvarna 5/16–18 BOLT.SHOULDER for Bolts and Fasteners

Looking for a reliable and authentic piece to upgrade your Husqvarna lawn or garden engine? You’ve come to the right place!

The Husqvarna BOLT. SHOULDER. 5/16–18 is a genuine O. E. M. part, expertly sourced directly from the manufacturer. This 5/16–18 Unc shoulder bolt is made from top-notch metal and boasts compatibility with numerous Husqvarna machines.

However, don’t forget to consult your equipment manual and diagram for precise application guidelines, as a wrench and screwdriver are generally required for replacement. This durable and handy screw comes in handy for repairing or maintaining your lawn mower and tractor.

The fastener type is a hexagon bolt, and this part is suitable for various Husqvarna models and lawn and garden engines.

Heavy-Duty Steel Shoulder Bolt for Various Industrial Applications

As I embarked on my DIY project, I found myself in need of a reliable and strong shoulder bolt. That’s when I stumbled upon Harfington’s 10-pack of 40Cr Steel Shoulder Bolts. Intrigued by the impressive mechanical properties promised by the maker, I decided to give it a try.

Upon arrival, I noticed each bolt boasted a sleek, black oxide finish, a socket cap head, and a hex socket drive for easy handling. The 12mm shoulder length and 8mm shoulder diameter offered the exact specifications I needed for my project. With confidence, I began my installation.

What stood out to me was the anti-rotation feature, which allowed me to securely lock the bolt in place, saving me the hassle of adjusting it repeatedly. The bolts performed admirably, holding up well under the pressure and demands of my project.

However, there were a couple of downsides. The lack of clear instructions or a user guide made the installation process a bit more challenging than it needed to be. Additionally, the black oxide finish gave the bolts a slightly corrosive feel, leaving me concerned about their long-term durability.

Overall, Harfington’s 40Cr Steel Shoulder Bolt delivered on its promise of comprehensive mechanical properties, making it a solid choice for various industrial applications, like textile, hydraulic, and machinery industries. While the installation instructions and anti-corrosion properties could use some improvement, the bolts performed well under pressure and earned their spot on my DIY project.

Dayton Pivot Shoulder Bolt Lock Nut (Fits Grainger Item #6W050B)

The Dayton PSB-050 Pivot Shoulder Bolt and Lock Nut is a versatile and practical hardware piece designed to fit with Grainger Item Numbers 6W050B and 4ZJ34B. This unique shoulder bolt and lock nut combination, made by Dayton, ensures a secure and long-lasting connection for various applications.

Created with high-quality materials, the Dayton PSB-050 offers smooth operation and reliable performance. The bolts are designed to be easy to install and remove, making it the perfect choice for both DIY enthusiasts and professionals alike. Additionally, the shoulder bolt’s pivot feature allows for easier adjustment and positioning.

However, it is essential to note that the Dayton PSB-050 may not be perfect for every project. Depending on the specific requirements and materials being used, you may need to consider alternative options to achieve the desired results.

Overall, the Dayton PSB-050 Pivot Shoulder Bolt and Lock Nut is a solid choice for those seeking a reliable and durable connection solution for their projects.

Stainless Steel Shoulder Bolt for Versatile Applications

Experience the unmatched strength and resilience of the Shoulder Bolt Hex Socket in your industrial applications. With its socket cap head and hex socket drive, you can easily tighten and secure it with ease.

This shoulder bolt, made from corrosion-resistant 304 stainless steel, is perfect for textile, hydraulic, machinery, and injection industries. Its locking mechanism ensures a firm grip, reducing rotation through efficient locking.

Despite its simplicity, this Shoulder Bolt is versatile and can be used in various applications, specifically for injection accessories.

High-Quality Carbon Steel 5/8 Shoulder Bolt with 5/8–11 Thread Size

The Snap-On JH Williams EB-27T 5/8-inch shoulder eye bolt has been an integral part of my toolbox for quite some time now, and I must say it’s been a reliable companion. This 11-threaded eyebolt is crafted from high-quality carbon steel, ensuring strength and toughness to prevent any liability or breakage. Its 4 3/4-inch length and 1 3/4-inch shank make it the perfect fit for a multitude of applications.

One aspect I truly appreciate is its ability to prevent unscrewing due to twisting cables, providing a secure and reliable hold. However, it’s essential to remember to properly seat the eyebolt and avoid undercutting to maximize its strength and efficiency.

Prime Line 7–04360 Universal Shoulder Bolt

Recently, I tried the Prime Line 7–04360 Universal Shoulder Bolt on my small engine, and I was impressed by its performance. The bolt’s quality and durability were evident as I tightened it, knowing it would ensure a secure assembly. The bolt’s dimensions, perfect for oil and gas accessories, made it a reliable option for my DIY needs.

Although I haven’t used it for long, my initial experience has been positive, and I would recommend it to any mechanic or DIY enthusiast looking for a high-quality bolt.

Buyer’s Guide

When it comes to shoulder bolts, there are several factors you should consider before making a purchase. This buyer’s guide will help you understand the key features, considerations, and general advice for selecting the right shoulder bolt for your needs.

Material Types

Shoulder bolts are available in various materials, such as steel, stainless steel, brass, and aluminum. Each material offers different benefits in terms of durability, corrosion resistance, and price. Steel bolts are generally more affordable, while stainless steel bolts provide greater corrosion resistance for use in harsh environments. Brass and aluminum bolts are lighter in weight and typically used in applications where weight is a factor.

Head Styles

Shoulder bolts come in different head styles, including flat, countersunk, and hex head. Flat head bolts have a level top surface, while countersunk bolts have a recessed area to allow for countersinking during installation. Hex head bolts feature a hexagonal top that can be tightened using a socket wrench. Consider the application and desired appearance when selecting the head style.

Thread Pitch

The thread pitch of a shoulder bolt refers to the number of threads per inch. Common thread pitches include UNF, UNC, and metric. Make sure the thread pitch you choose is compatible with the hardware you will be using and the material being joined. A mismatch in thread pitch can lead to improper installation or damage to the components.

Size and Length

When selecting a shoulder bolt, consider the size and length required for your application. The size is determined by the bolt diameter, while the length is determined by the overall length of the bolt. Make sure to choose a size and length that can accommodate the components being joined and provide enough clearance for the installation process.

FAQ

What are shoulder bolts and their purpose?

Shoulder bolts, also known as shoulder screws, are bolts with a large head that resembles the shoulder of a torpedo. They are typically used to secure items or structures where a standard bolt may not be strong enough or appropriate. Their purpose is to provide a secure and sturdy connection between two surfaces, particularly in instances where a standard bolt would be insufficient.

Shoulder bolts are commonly used in industries like construction, automotive, and marine because of their versatility and high holding power. They can be found in various materials such as steel, brass, and stainless steel, allowing them to withstand harsh environmental conditions and resist corrosion.

How are shoulder bolts different from regular bolts?

The primary difference between shoulder bolts and regular bolts is their construction. Regular bolts have a straight shank and a small diameter head, while shoulder bolts have a larger, rounded head and a tapered shank. This tapered shank increases the engagement area between the bolt and the threaded hole, resulting in a stronger connection.

Furthermore, shoulder bolts can be self-locking. This is because their larger head pushes against the part being bolted, creating an extra locking mechanism. This feature is particularly useful in situations where regular bolts might loosen or come undone over time due to vibration or stress. However, it is essential to use the correct shoulder bolt with the appropriate thread pitch and length to ensure a proper fit and optimal performance.

What types of materials can shoulder bolts be made of?

Shoulder bolts can be manufactured from various materials, each with its own set of properties and benefits. The most common materials include steel, brass, and stainless steel. Steel shoulder bolts are durable and strong, making them suitable for heavy-duty applications. Brass bolts are highly resistant to corrosion and can be used in both indoor and outdoor environments.

Stainless steel shoulder bolts offer excellent strength, corrosion resistance, and are well-suited for marine and coastal applications. They can also be found in various finishes to match the surrounding environment. It is essential to choose the right material based on the specific requirements and conditions of the application, as well as the desired level of corrosion resistance and durability.

How should shoulder bolts be installed and tightened?

To install and tighten shoulder bolts, follow these steps:

1. Ensure the correct size and thread pitch are selected to match the component being bolted. 2. Pre-drill a hole with the same diameter as the bolt’s shank. 3. Apply a suitable lubricant, such as thread-locking compound, to prevent rust and maintain a smooth operation. 4. Carefully insert the shoulder bolt into the hole and tighten it using a torque wrench or a calibrated screwdriver to the recommended torque value according to the manufacturer’s instructions or industry standards.

Proper installation and tightening of shoulder bolts are crucial to ensure optimal performance and longevity. Always use the correct tools to avoid damage to the bolt and the components being fastened. Regularly inspect the bolted connections for signs of wear, corrosion, or loosening to address any issues promptly.

Can shoulder bolts be used in situations where high torque is required?

Yes, shoulder bolts can be used in situations where high torque is required, as their larger head allows for stronger engagement with the material being bolted. However, it is essential to select the appropriate shoulder bolt for the specific application, considering the material properties, diameter, and length.

It is also vital to use a calibrated torque wrench or screwdriver to ensure the correct torque value is applied when tightening the shoulder bolt. Exceeding the recommended torque value could damage the bolt and the components being fastened, compromising the structural integrity and safety of the installation.

What are some common applications of shoulder bolts?

Shoulder bolts are used in various applications across different industries, including automotive, construction, and marine. Some common applications include:

1. Car and truck suspension systems, where shoulder bolts help secure the suspension components to the vehicle’s frame. 2. Construction projects, where they are used to attach wooden beams, concrete blocks, or other building materials to metal frames, concrete foundations, or other structural components. 3. Marine applications, where shoulder bolts can be found securing metal panels, access hatches, and other fixtures on boats, yachts, and other watercraft.

In general, shoulder bolts are versatile fasteners that provide a strong, locking connection. They are suitable for heavy-duty applications and can withstand harsh environmental conditions, making them an ideal choice for a wide range of industries and applications where fast and secure connections are needed.

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