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Item #:
88898257
Grade 2 Shear Bolts for Rotary Cutters 1/2" x 3-1/2" with Nylock Nuts - 12 Pack
89% of respondents would recommend this to a friend
Item #:
88898257
ZMW 704
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Mill certified Grade 2 SAE J429 shear bolts and Nyloc nuts prevent loosening from vibration.
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What Stands Out
Durable Material
Constructed from high-grade steel, these shear bolts provide exceptional strength and longevity, ensuring reliable performance for rotary cutters under demanding conditions.
Safety Mechanism
Designed to shear under excessive stress, these bolts protect equipment from damage, enhancing safety and reducing repair costs during operation.
Convenient Bundle
Available in a 5-pack, these shear bolts offer excellent value and convenience, making it easy to stock up for maintenance and repairs without hassle.
Product Details
- Kit includes 5 mill certified Grade 2 SAE J429 shear bolts and 5 nylon locknuts
- Shear bolts are stronger than typical hardware store ASTM A307 bolts
- Nyloc nut prevents loosening from vibration
- Universal Size for Rotary Cutters: 1/2 Diameter, 3-1/2 Length
- Zinc (Cr+3) RoHS compliant finish prevents corrosion
- Makers Bolt is a family owned fastener distributor based in Oregon, USA, specializing in providing woodworkers with high-quality fasteners
| Size Name | Grade 2: 1/2 X 3-1/2 |
| Item Diameter | 0.5 inches (1.27 cm) |
| Number of Pieces | 12 |
| Outside Diameter | 0.5 inches |
| Screw Head Style | Hex |
| Thread Size | 1/2 X 3-1/2 |
| Compatible Groove Diameter | 0.5 inches |
| Grade Rating | Grade 2 |
| Color | Silver |
| Item Shape | Hexagonal |
| Material Type | Grade 2 |
| Finish Types | Silver |
| Brand | MAKERS BOLT |
| Fastener Type | Bolt |
| Unit Count | 12 Count |
| Number Of Items | 12 |
| Set Name | Grade 2 Shear Bolt Set (12 Pieces with Nylock Nuts) |
| Manufacturer | Makers Bolt |
| UPC | 810074740562 |
| Model | 505612 |
| Part Number | 505612 |
| Size | Grade 2: 1/2 X 3-1/2 |
| Material | Grade 2 |
| Item Weight | 1.5 lbs (680 grams) |
Who Should Buy?
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Homeowners
Ideal for homeowners maintaining rotary cutters, ensuring reliable operation and easy replacement for lawn care tasks.
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Landscapers
Perfect for professional landscapers who rely on durable bolts to maintain quality and efficiency in their cutting equipment.
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DIY Enthusiasts
Great for DIY enthusiasts undertaking personal projects with rotary cutters, appreciating the ease of use and strength of these bolts.
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Heavy Machinery
Not suitable for heavy machinery applications that require higher-grade bolts for increased strength and durability.
Product Description
Grade 2 Shear Bolts for Rotary Cutters 1/2" x 3-1/2" with Nylock Nuts - 12 Pack
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are Grade 2 shear bolts used for in rotary cutters?
Answer: Grade 2 shear bolts are designed specifically for rotary cutters to secure moving parts. They are engineered to break under stress to protect your mower's components from damage during operation. By using these shear bolts, you can prevent costly repairs that can arise from metal fatigue or impact. For example, in situations where your rotary cutter encounters large debris, the shear bolts will break instead of damaging the gearbox or blades. -
Question:
What is the significance of using Nylock nuts with shear bolts?
Answer: Nylock nuts provide a superior locking mechanism that prevents nuts from loosening during operation. This is vital in applications like rotary mowers where vibrations are common. Nylock nuts feature a nylon insert that grips the bolt threads, ensuring a secure hold even in demanding conditions. For instance, this prevents the shear bolts from loosening over time and reduces the risk of mechanical failure, which could lead to unexpected downtime. -
Question:
How do I know if the Grade 2 shear bolts will fit my rotary cutter?
Answer: To ensure compatibility, check the specifications of your rotary cutter model, particularly the size and thread type required for the shear bolts. The Grade 2 shear bolts measure 12 x 3-12, meaning they are 12 inches long with a 3/8-inch diameter and 12 threads per inch. For example, if your cutter requires similar dimensions, these bolts should fit perfectly, ensuring smooth operation. -
Question:
Can I use these shear bolts for applications other than rotary cutters?
Answer: Yes, while these shear bolts are specifically designed for rotary cutters, their versatility allows them to be used in various machinery that requires shear pins. They are suitable for lawn and garden equipment, certain agricultural implements, and other machinery where protection against overload is necessary. For instance, using them in a wood chipper or tiller can prevent damage to the unit in case of obstructions. -
Question:
What is the typical material used for Grade 2 shear bolts?
Answer: Grade 2 shear bolts are usually made from carbon steel, which provides a good balance of strength and ductility. This material ensures that the bolts can handle significant shear loads while sacrificing themselves to protect other parts of the machinery. Due to their construction, they are well-suited for industrial applications where strength and reliability are critical in high-stress environments, such as when cutting through rugged terrain. -
Question:
What is the benefit of purchasing shear bolts in a 5-pack?
Answer: Purchasing shear bolts in a 5-pack offers the advantage of having spare bolts on hand for immediate replacement, reducing downtime. Since shear bolts can break during typical operations, having extras ensures you can quickly fix your equipment and get back to work. This is particularly beneficial for landscapers and farmers who depend on their machines to operate efficiently without delays caused by unforeseen maintenance. -
Question:
Are Grade 2 shear bolts suitable for high-torque applications?
Answer: Grade 2 shear bolts are not designed for high-torque applications; instead, they are intended to shear off under excess strain. Their primary purpose is to protect machinery from damage by sacrificing themselves during a torque overload. It's crucial to select the right bolt grade suited to the specific application to avoid failures. For high-torque situations, consider using a higher-grade bolt that matches those torque specifications. -
Question:
How do I install Grade 2 shear bolts in my rotary cutter?
Answer: To install Grade 2 shear bolts, align the rotary cutter components and insert the shear bolt through the designated hole. Secure it with a Nylock nut by threading it onto the bolt until snug, ensuring not to overtighten as this may reduce the bolt's protective capabilities. Proper installation is crucial, as it allows the bolt to perform effectively under load and protect your machinery from damage, maintaining smooth operation. -
Question:
Where can I buy Grade 2 shear bolts for rotary cutters in Zambia?
Answer: You can purchase Grade 2 shear bolts for rotary cutters from Ubuy in Zambia. Ubuy offers a convenient online shopping experience, providing access to a variety of essential tools and equipment, including shear bolts and Nylock nuts, all in one place. This makes it easy for you to find and buy the right products for your machinery needs.
MAKERS BOLT Nut & Bolt Assortment Sets Editorial Review
Grade 5 Shear Bolts for Rotary Cutters 1/2" x 3-1/2" with Nylock Nuts - 5 Pack are designed for durability and reliability, crafted from Grade 5 material which ensures they shear when necessary, maintaining safety while operating your equipment. Users have praised their effectiveness, mentioning that they work as advertised for brush hog applications and have noted their perfect fit and quality. With a handy pack of five, these bolts provide great value, especially when compared to OEM alternatives that can cost significantly more. These shear bolts have proven to be a reliable choice among users for maintaining their rotary cutters and lawn mowers.
Customer Reviews & Ratings
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Pros
- Durable Grade 5 construction for reliable performance
- Shear when needed for equipment safety
- Perfect fit for various rotary cutters
- Great value compared to OEM bolts
- Easy replacement and installation
Cons
- May require periodic replacement depending on use conditions
Platform Trust & Buyer Confidence
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Jasmin
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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ZMW 704
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Features & Benefits
- Mill certified Grade 2 SAE J429 shear bolts
- Stronger than typical hardware store ASTM A307 bolts
- Nyloc nut prevents loosening from vibration
- Kit includes 5 shear bolts and 5 nylon locknuts
- Compatible with most rotary cutters
- Zinc (Cr+3) RoHS compliant finish prevents corrosion.
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