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Galvanized Hexagon Head Combination Bolts from China Suppliers - Durable Factory-Direct Solutions for Construction
| Thread specifications d |
M3 | M4 | M5 | M6 | M8 | M10 | M12 | |
| a | Max | 1 | 1.4 | 1.6 | 2 | 2.5 | 3 | 3.5 |
| H | Max | 2 | 2.75 | 3.25 | 4 | 5 | 6.25 | 7.5 |
| dc | Reference value | 5.23 | 6.78 | 8.75 | 10.71 | 13.64 | 16.59 | 19.53 |
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Key Applications of Hexagon Head Screw with Spring Pad Combination Bolt
- 🔧 Fixed Connection: The outer hexagonal screw is used for fixing the connection of two or more parts, widely used in electronics, electrical appliances, electrical power, furniture, chemical, water conservancy, ships and other industrial equipment and devices.
- 🛡️ Shock Absorption & Mitigation: The cushion, as an elastic component, can effectively reduce vibration and impact, to avoid vibration and loose screws.
- 🔒 Prevent Loosening: In the case of vibration, the elastic cushion can make the screws more stable and reduce the risk of looseness.
- 📐 Gap Adjustment: When the gap between the screw and the part needs to be adjusted, the spring pad can play the role of gap adjustment.
- 🔇 Noise Reduction: The spring pad can reduce the vibration of the connector, reduce the noise, and improve the comfort of use.
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The hexagonal outer screw with spring pad combination bolt is widely used in the industrial field, especially in machining, assembly and maintenance. They help workers complete tasks more easily and are increasingly favored by consumers.
❓ Frequently Asked Questions
Q What is a hexagon head screw with spring pad combination bolt?
A hexagon head screw with spring pad combination bolt is a fastener assembly that integrates a hexagonal head bolt and a spring (lock) washer into one unit. This design simplifies installation and ensures a secure, vibration-resistant connection in a single fastening step.
Q What thread sizes are available for this combination bolt?
These combination bolts are commonly available in thread sizes ranging from M3 to M12, covering a wide range of industrial and mechanical applications. Please refer to the specification table above for detailed dimensional values.
Q Why is the spring pad important in this type of fastener?
The spring pad (spring washer) acts as an elastic component that absorbs vibration and shock, prevents the screw from loosening under dynamic loads, and helps adjust minor gaps between connected parts. It also contributes to noise reduction in assembled structures.
Q What industries commonly use galvanized hexagon head combination bolts?
These bolts are widely used across many industries including electronics, electrical appliances, power generation, furniture manufacturing, chemical processing, water conservancy, shipbuilding, and general industrial machinery assembly and maintenance.
Q What is the advantage of galvanized coating on these combination bolts?
Galvanizing provides a protective zinc coating that significantly improves corrosion resistance, making the bolts suitable for use in humid, outdoor, or chemically exposed environments. It also extends the service life of the fastener and maintains its structural integrity over time.
Q Can these combination bolts be reused after disassembly?
In general, hexagon head combination bolts can be reused if the spring pad and bolt threads remain undamaged after disassembly. However, it is recommended to inspect each component carefully before reuse, and replace any parts showing signs of deformation, corrosion, or wear to ensure a reliable connection.