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Item #:
221112024
100 Pcs #4-40 x 1/2" Flat Head Socket Cap Machine Screws,Grade 10.9 Alloy Steel Countersunk Bolts,Fully Threaded Allen Hex Drive, Black Oxide Finish
87% of respondents would recommend this to a friend
Item #:
221112024
LAK 348099
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 Wednesday, September 30
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Forged from high-strength 10.9 grade alloy steel, these machine screws offer superior tensile strength, ensuring rock-solid stability in high-stress applications.
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What Stands Out
Durable Construction
Made from Grade 10.9 alloy steel, these screws offer superior tensile strength and durability, ensuring they can handle demanding applications without bending or breaking.
Versatile Design
The fully threaded design and flat head make these screws suitable for various projects, providing a clean finish and compatibility with numerous materials.
Corrosion Resistant
Featuring a black oxide finish, these screws offer resistance to corrosion and wear, extending their lifespan, making them ideal for both indoor and outdoor use.
Product Details
| Thread Size | #4-40 |
| Exterior Finish | Black Oxide |
| Screw Head Style | Flat |
| Color | Black |
| Thread Style | Right Hand |
| Head Type | Flat |
| Drive System | External Hex |
| Grade Rating | Class 10.9 |
| Material Type | Alloy Steel |
| Size Name | #4x1/2 |
| Thread Coverage | Fully Threaded |
| Item Weight | 2.05 ounces (58.12 grams) |
| Brand | ZOWZEA |
| Unit Count | 100 Count |
| Manufacturer | ZOWZEA |
| Number Of Items | 100 |
| Model | 100ZW-4-40-1-2 |
| Part Number | B2025061431 |
| Material | Alloy Steel |
| Head Style | Flat |
Who Should Buy?
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DIY Enthusiasts
Perfect for hobbyists looking for strong, reliable screws for various projects like woodwork or metal assemblies.
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Mechanical Engineers
Great choice for engineers needing durable fasteners in their designs, ensuring structural integrity under stress.
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Electronics Projects
Ideal for securing components in electronics, where precision and a flat head finish are necessary for mounting.
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Lightweight Applications
Overkill for simple tasks where lighter screws would suffice, as they may be unnecessarily heavy-duty.
Product Description
100 Pcs #4-40 x 1/2" Flat Head Socket Cap Machine Screws,Grade 10.9 Alloy Steel Countersunk Bolts,Fully Threaded Allen Hex Drive, Black Oxide Finish
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the material used for these machine screws?
Answer: The 100 Pcs #4-40 x 1/2" Flat Head Socket Cap Machine Screws are made from Grade 10.9 alloy steel. This high-grade material offers superior tensile strength and durability, making it ideal for heavy-duty applications. Alloy steel is resistant to wear and corrosion, ensuring that the screws maintain their structural integrity even in challenging environments. They are perfect for use in construction, automotive assembly, and machinery repair. -
Question:
What are the dimensions of these screws?
Answer: These screws measure #4-40 in size and are 1/2" in length. The #4 designation indicates the diameter, while the 40 indicates the thread count per inch. Their flat head provides a flush finish when installed, making them suitable for applications where a neat appearance is essential. They're ideal for securing components within tight spaces where thickness may be a concern. -
Question:
What is the significance of the black oxide finish?
Answer: The black oxide finish on these screws enhances their resistance to corrosion and wear. This surface treatment not only provides a sleek, professional appearance but also helps to reduce light reflection, which can be especially beneficial in tactical or aesthetic applications. The finish can extend the lifespan of the screws when used in favorable conditions, making them suitable for automotive and industrial uses. -
Question:
Can these screws be used for outdoor applications?
Answer: While the black oxide finish aids in corrosion resistance, these screws are not entirely rust-proof. For outdoor applications, they may be used in low-moisture environments. However, consider using them in combination with protective coatings or environments where exposure to water and extreme conditions is limited. This ensures optimal performance and longevity. -
Question:
What type of drive does this screw feature?
Answer: These machine screws feature an Allen hex drive, which allows for secure fastening using an Allen wrench. The hex drive design provides excellent grip and reduces the risk of stripping that can occur with other drive types. This makes them ideal for applications requiring high torque and precise installation, such as in machinery assembly or furniture construction. -
Question:
Are these screws suitable for electronics assembly?
Answer: Yes, these screws can be used in electronics assembly, especially in situations where a flat head screw is needed to secure components without adding extra height. Their fully threaded design ensures that components are securely held, and the flat head minimizes the risk of contact with sensitive electronic parts. They are effective for securing casings and panels in electronics. -
Question:
What tools are required to install these screws?
Answer: To install these screws, you will need an Allen wrench that matches the hex size of the screws. A socket cap screw requires precise torque for optimal performance, so having the right tool is essential. Additionally, ensuring that you have a properly fitted wrench can prevent slipping and damage to the screw head during installation. -
Question:
Are these screws reusable?
Answer: Yes, the Grade 10.9 screws are designed to be reusable. Proper installation and removal techniques will help in preserving their integrity for multiple uses. However, if the screws have been subject to extreme conditions or have shown signs of wear, it's advisable to replace them to ensure safety and reliability in your projects. -
Question:
Where can I buy 100 Pcs #4-40 x 1/2" Flat Head Socket Cap Machine Screws in Laos?
Answer: You can purchase 100 Pcs #4-40 x 1/2" Flat Head Socket Cap Machine Screws at Ubuy. They offer a reliable shopping experience and a wide variety of products, ensuring that you can find the specific screws you need for your projects. Ubuy provides detailed product descriptions and customer reviews, making it easier for you to make informed decisions. -
Question:
What applications are best for using these machine screws?
Answer: These machine screws are ideal for a variety of applications, including furniture assembly, machinery manufacturing, and automotive repairs. Their strength and durability make them well-suited for high-stress environments where secure fastening is critical. Additionally, they can be used for DIY home improvement projects where precision fastening is required.
ZOWZEA Socket Head Screws Editorial Review
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LAK 348099
Order now and get it around Wednesday, September 30
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- High-strength 10.9 grade alloy steel for maximum tensile strength.
- Precision flush finish for a professional and snag-free appearance.
- Designed for high-torque applications with minimal risk of cam-out.
- Sleek black oxide coating provides corrosion resistance and a non-reflective look.
- Includes 20 screws for excellent value across multiple projects.
- Ideal for automotive repair, machinery, electronics, and woodworking.
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