Hebei Anyue Metal Manufacturing Co., Ltd.
Professional hardware rigging manufacturing enterprise
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Product Introduction
The Galvanized Full Thread Hexagon Head Screw Bolt is designed for high-strength fastening across various industrial applications. With a range of materials like carbon steel, stainless steel, and titanium, this versatile bolt guarantees durability and reliable performance in extreme environments. Whether used in construction, automotive, or renewable energy sectors, it ensures secure connections with simple installation and long-term stability. Order now for reliable and cost-effective fastening solutions.
Product Advantage
The Hexagon Head Screw Bolt is available in high-tensile grades (8.8, 10.9, 12.9), ensuring resilience under shear and tensile forces. This makes it perfect for heavy-duty applications such as construction, automotive, and machinery.
With its hexagonal head design, this bolt can be easily tightened using common tools like wrenches and sockets. No special tools are required, making it ideal for quick installations and maintenance in confined spaces.
The bolt’s six flat sides prevent rounding under high torque, providing a secure fastening and resistance to loosening. Combined with washers and nuts, it’s perfect for high-vibration environments like automotive and aerospace applications.
From construction to automotive, renewable energy, and even aerospace, this bolt excels in securing machinery, steel structures, and renewable energy systems, making it a universal fastener for critical applications.
Thanks to standardized sizes and competitive pricing, the hexagon head screw is perfect for budget-conscious industries like construction and manufacturing, ensuring easy sourcing and bulk purchasing options for large-scale projects.
Product Parameters
| Parameter | Description |
|---|---|
| Thread Diameter (d) | Common sizes: M3, M4, M5, M6, M8, M10, M12, M16, M20, etc. (Metric) or #4, #6, 1/4", 5/16", 3/8", 1/2", etc. (Imperial) |
| Head Diameter (D) | Typically 1.5× to 2× the thread diameter (e.g., M10 bolt ≈ 17mm head width). |
| Head Height (H) | Depends on bolt size (e.g., M6 ≈ 4mm, M12 ≈ 7.5mm). |
| Shank Length (L) | Ranges from 10mm to 300mm+ (partial or fully threaded). |
| Thread Pitch (P) | Fine or coarse thread (e.g., M8x1.25 = fine, M8x1.5 = coarse). |
| Parameter | Description | Standards |
|---|---|---|
| Material | Carbon steel (most common), stainless steel (A2/A4), alloy steel, titanium. | ISO 898, ASTM A325/A490 |
| Strength Grade | Metric: 4.8, 8.8, 10.9, 12.9 (higher = stronger). Imperial: Grade 2, 5, 8. | ISO 898-1, ASTM F568M |
| Tensile Strength | 400 MPa (Grade 4.8) up to 1200 MPa (Grade 12.9). | |
| Yield Strength | ~60-90% of tensile strength (e.g., Grade 8.8 = 640 MPa yield). | |
| Hardness | Varies by grade (e.g., 8.8 = HRC 22-32, 12.9 = HRC 39-44). | Rockwell, B |
| Type | Purpose | Common Applications |
|---|---|---|
| Zinc Plating | Basic corrosion resistance (5-25µm). | Indoor machinery, furniture. |
| Hot-Dip Galvanizing | Thick zinc layer (~50-100µm) for outdoor use. | Bridges, construction. |
| Black Oxide | Mild rust protection + aesthetic. | Automotive, tools. |
| Dacromet | High corrosion resistance (Zn-Al flakes). | Automotive, marine. |
| Stainless Steel | Naturally corrosion-resistant (A2-304, A4-316). | Food, marine, chemical. |
| Type | Description | Use Case |
|---|---|---|
| Full Thread | Threads run the entire shank length. | General-purpose fastening. |
| Partial Thread | Unthreaded shank near the head. | Shear resistance (structural). |
| Fine Thread | Smaller pitch (e.g., M12x1.5). | High-vibration applications. |
| Coarse Thread | Larger pitch (e.g., M12x1.75). | Quick assembly, soft materials. |
Product Applications
·Machinery Assembly: Used to fasten components like machine tool bases, gearboxes, and pump casings. For example, in automotive production lines, they secure engine parts, chassis components, ensuring stable equipment operation.
·Steel Structure Construction: Connect steel beams, columns, and supports in factory buildings, bridges, and stadiums. Their large bearing capacity helps maintain the stability of the steel structure.
·Building Hardware Installation: Fix door and window hinges, handles, and locks; also used for installing metal railings, curtain wall keels, etc., ensuring firm connections of hardware.
·Infrastructure Construction: Applied in water supply and drainage pipelines, heating systems, and fixing pipeline supports, playing a role in sealing and connection.
·Vehicle Assembly: A key part in car, truck, and motorcycle manufacturing, used for assembling engines, axles, and body frames, ensuring vehicle safety and performance.
·Maintenance & Repair: When repairing vehicles, they are used to disassemble and reinstall parts, such as replacing tires (wheel bolts are a type of hex bolt) and engine overhauls.
·Joining wooden frames, cabinet hardware, and outdoor furniture.
·Used with washers and nuts for reinforced stability.
·High-strength bolts for aircraft frames, landing gear, and engine mounts.
·Often made from titanium or high-grade steel for durability.
·Stainless steel or galvanized hex bolts resist corrosion in shipbuilding and dock structures.
·Used in submersible equipment and oil rigs.
·Solar panel mounting structures (racking systems).
·Wind turbine assembly (tower sections, blade connections).
·Securing transformer casings, switchgear, and control panels.
·Used in telecommunication towers and antenna mounts.
FAQ
A: Hex bolts are commonly made from carbon steel (grades 4.8, 8.8, and 10.9), stainless steel (A2-304, A4-316 for corrosion resistance), alloy steel (for high strength), and titanium (lightweight, ideal for aerospace use). The material choice depends on the specific application, providing varying levels of strength and resistance to corrosion.
A: The strength grade of a hex bolt determines its load-bearing capacity. Grade 4.8 is suitable for low-strength applications, offering general-purpose use. Grade 8.8 provides medium-high strength, making it ideal for machinery and automotive applications. For structural and heavy-load requirements, Grade 10.9/12.9 is the best choice, offering the highest tensile strength and durability.
A: To prevent loosening, you can use lock washers, such as split or spring types, or apply thread-locking adhesive (like Loctite) to secure the threads. Nylon lock nuts can also be used for self-locking, and for extreme vibration conditions, Nord-Lock washers are recommended to provide extra security.
A variety of tools can be used to install hex bolts, including wrenches (open-end, box-end, or adjustable), sockets and ratchets (preferably 6-point for a better grip), and impact drivers for high-torque applications. These tools help ensure the bolts are tightly secured during installation.
A counterfeit or low-quality hex bolt can often be identified by checking for proper markings, such as grade stamps or manufacturer logos. You can also test the hardness; lower-grade bolts tend to deform more easily. Additionally, inspecting the thread consistency can reveal poorly made bolts, which might not provide a strong grip.
