Product Description
Zinc plated fully threaded bolts are fasteners featuring continuous threads along their entire length. They are widely used in mechanical connections, building structures, and equipment installation. Manufactured from high-quality carbon steel and treated with a zinc coating, these bolts offer excellent rust and corrosion resistance, making them suitable for a variety of industrial and engineering environments.
Product Specifications
|
Product Name |
Galvanized Full-Thread Bolts, Full-Thread Hex Head Bolts, Through-Thread Bolts |
|
Standard |
DIN 933 |
|
Strength Grade |
Grade 4.8 / Grade 8.8 |
|
Material |
High-quality carbon steel |
|
Surface Treatment |
Electrogalvanized (Blue-White Zinc / Color-Coated Zinc) |
|
Thread Type |
Full-Thread |
Product Features
The entire screw is fully threaded, allowing for unlimited installation depth. When paired with a nut, the length can be freely adjusted, offering exceptional versatility.
The galvanized surface effectively prevents rust and corrosion, making it suitable for indoor use, humid environments, and general outdoor equipment.
The standard hex head allows for quick tightening with wrenches or sockets, providing high torque and preventing slippage.
Available in Grade 4.8 (economical and versatile) and Grade 8.8 (high strength) to meet the demands of various applications, including mechanical equipment and steel structures.
Unified and standardized dimensions enable one-stop procurement of matching nuts, flat washers, and spring washers.
Applications
- Securing machinery, motors, fans, and pumps
- Installing steel structures, brackets, piping, and guardrails
- Assembling electrical cabinets, furniture, and shelving units
- Construction and renovation, light-duty projects, and general maintenance
Standard Size Chart (mm)
|
Specifications |
Pitch P |
Diagonal S |
Common Length L |
|
M6 |
1.0 |
10 |
12–100 |
|
M8 |
1.25 |
13 |
16–120 |
|
M10 |
1.5 |
17 |
20–150 |
|
M12 |
1.75 |
19 |
25–200 |
|
M14 |
2.0 |
22 |
30–200 |
|
M16 |
2.0 |
24 |
40–200 |
|
M20 |
2.5 |
30 |
50–200 |
|
M24 |
3.0 |
36 |
60–200 |
Common Lengths: 12, 16, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 120, 150, 200
Installation and Precautions
1. Before installation, clean dust and oil from the bolt surface and mounting holes to prevent interference with thread engagement and fastening effectiveness.
2. Do not store galvanized bolts together with bare carbon steel parts to prevent electrochemical corrosion.
3. Control the installation torque to avoid over-tightening, which can cause thread stripping or shaft breakage. It is recommended to select a wrench appropriate for the bolt specifications.
4. Store in a dry, well-ventilated environment, avoiding moisture and direct sunlight to prevent oxidation and peeling of the zinc coating.
5. For outdoor use, periodically inspect the condition of the zinc coating. If damage is found, promptly apply anti-rust paint to extend service life.
Customization and Service Guarantees
- Non-standard Customization: We support customization of special materials, thread specifications, lengths, head styles, and galvanizing processes. Simply provide drawings for on-demand production.
- Quality Assurance: Every batch of products undergoes rigorous testing. We provide factory certificates of conformity and material reports, and can supply salt spray test reports upon request.
- Supply Assurance: Ample stock of standard specifications is available. Bulk orders can be expedited. We support immediate shipment of in-stock items, door-to-door logistics, and customizable packaging.
- Price Advantage: Direct supply from the manufacturer eliminates middleman markups. Volume purchases qualify for tiered discounts, and long-term partners enjoy exclusive pricing.
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