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Item #:
11351805
Chenango Supply 1/4-20 x 3 Grade 8 Hex Head Bolts Alloy Steel, Yellow Chromate Zinc, USS Coarse Thread, 150,000 PSI Tensile Strength, High-Strength
Item #:
11351805
GBP 36
Price Details
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*All items will import from US
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Imported from USA store
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Order now and get it around Friday, July 24
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Great for heavy machinery and automotive applications where high strength is a must!
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What Stands Out
High Strength
Crafted from grade 8 steel, these bolts provide exceptional tensile strength, ensuring durability and reliability under heavy loads, ideal for demanding applications.
Versatile Sizing
Available in multiple lengths from 1/2 to 4 inches, these hex head bolts cater to various projects, making them the go-to choice for both professionals and DIY enthusiasts.
Complete Set
Packaged in quantities of 50, these hex head cap screws offer excellent value, providing ample supply for large projects while ensuring you won't run out mid-job.
Product Details
| Item Weight | 3 lbs (1.36 kg) |
Who Should Buy?
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Contractors
Ideal for contractors needing durable fasteners for construction projects requiring strength and reliability.
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DIY Enthusiasts
Great for DIY enthusiasts working on home projects that need robust and versatile fasteners.
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Automotive Repairs
Suitable for automotive repairs where strong and corrosion-resistant bolts are essential for secure fittings.
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Lightweight Applications
Not suitable for lightweight applications where high strength is unnecessary, leading to overspending.
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Non-metal Materials
Not recommended for non-metal materials as the threading may damage or not anchor properly.
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Casual Use
Not ideal for casual users who need simple, low-strength fastening solutions for minor tasks.
Product Description
Chenango Supply 1/4-20 x 3 Grade 8 Hex Head Bolts Alloy Steel, Yellow Chromate Zinc, USS Coarse Thread, 150,000 PSI Tensile Strength, High-Strength Hardware Bolts, (50 Pieces, 1/4-20 x 3 G8)
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a 1/4-20 USS Hex Head Nut, Grade 8?
Answer: A 1/4-20 USS Hex Head Nut, Grade 8 is a type of fastener characterized by a hexagonal shape with internal threading that accommodates a 1/4-inch diameter bolt with 20 threads per inch. Grade 8 indicates it's made from high-strength steel with a minimum tensile strength of 150,000 PSI, making it suitable for heavy-duty applications. These nuts are used in various settings, from automotive to construction, where durability and strength are crucial. -
Question:
What materials are used in Grade 8 nuts?
Answer: Grade 8 nuts are typically made from medium carbon steel that is hardened to ensure durability and high tensile strength. The hardness of these nuts allows them to withstand significant stress and prevents deformation under load. This is why they are often used in demanding applications, such as machinery and structural assemblies, where reliability is essential. -
Question:
What are practical uses for 1/4-20 Hex Head Nuts?
Answer: 1/4-20 Hex Head Nuts are versatile and commonly used for securing bolts in various assemblies. They are ideal for automotive repairs, machinery maintenance, and construction projects. For instance, if you're assembling a metal frame for furniture or a mechanic working on a vehicle, these nuts provide the necessary strength to ensure that parts remain securely fastened during operation. -
Question:
How do I choose the right size hex nut?
Answer: To choose the right size hex nut, you need to match it with the bolt diameter and thread count. For a 1/4-20 hex nut, ensure it fits a 1/4-inch bolt with 20 threads per inch. It’s important to check that both the nut and bolt are of the same grade; using mismatched grades can lead to failure in high-stress applications. This ensures the integrity of your assembly in various applications, from automotive projects to heavy machinery. -
Question:
Are these nuts resistant to corrosion?
Answer: Standard Grade 8 nuts are not inherently corrosion-resistant; however, there are options available with coatings or finishes that can provide some level of protection from rust and corrosion. To enhance durability, you might consider using nuts with plating or surface treatments like zinc plating. These treatments can be crucial in outdoor or humid environments, where exposure can lead to rapid deterioration. -
Question:
Can I use 1/4-20 hex nuts in high-temperature applications?
Answer: While Grade 8 hex nuts can withstand a wide range of temperatures, they may not be suitable for extreme high-temperature environments where they could lose tensile strength. For applications involving high heat, consider specialized materials or grades specifically rated for those conditions. This ensures your fastening solution maintains its integrity under intense operational demands, such as in engine components or high-heat machinery. -
Question:
What is the difference between USS and SAE hex nuts?
Answer: USS (United States Standard) nuts are designed to fit US standard bolts, while SAE (Society of Automotive Engineers) nuts are often more specific to automotive applications. USS nuts usually have a slightly thicker body, providing greater durability and strength compared to SAE nuts. Understanding this distinction is vital for ensuring compatibility in projects, especially in automotive repairs, machinery, and general construction. -
Question:
How do I know if I need Grade 8 nuts versus lower grades?
Answer: Choosing Grade 8 over lower grades (like Grade 2 or Grade 5) comes down to the specific strength requirements of your project. Grade 8 is recommended for applications that encounter high stress, heavy loads, or extreme environmental conditions. If the application involves significant vibration or repeated impact, opting for Grade 8 ensures that your assembly remains secure and reliable over time. -
Question:
Can I buy a smaller quantity of hex head nuts?
Answer: Yes, many suppliers, including listings that feature 1/4-20 USS Hex Head Nuts, offer various packaging sizes to accommodate different project needs. If you only need a few nuts for a small repair, look for these smaller quantity options. This flexibility can help you minimize waste and ensure you have the right components on hand for various tasks. -
Question:
Where can I buy 1/4-20 USS Hex Head Nuts, Grade 8 in Jersey?
Answer: You can buy 1/4-20 USS Hex Head Nuts, Grade 8 in Jersey from Ubuy. Ubuy offers a wide selection of fasteners, including Grade 8 nuts, with convenient purchasing options to suit your needs. Whether you're looking for bulk quantities or specific grades, Ubuy provides a reliable resource for sourcing quality hardware.
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“The product received very good packaging & safe…Thank You”
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“Not madly expensive like I thought, and much quicker than promised.”
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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GBP 36
Order now and get it around Friday, July 24
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Features & Benefits
- Grade 8 hardened bolt for superior strength.
- Pack of 50 screws for maximum value.
- USS coarse thread for easy installation.
- Minimum tensile strength of 150,000 PSI.
- Ideal for heavy machinery and automotive use.
- Durable yellow chromate zinc coating for corrosion resistance.
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