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Galvanized Hexagon Head Combination Bolts with Spring Pad - Bulk Supply from China Suppliers and Factory
| 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 |
Key Applications of Hex Head Screw with Spring Washer 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, preventing vibration and loose screws.
- 🔒 Prevent Loosening: In the case of vibration or impact, the elastic cushion keeps screws more stable, reducing the risk of looseness.
- 📐 Gap Adjustment: When the gap between the screw and the part needs to be adjusted, the spring pad plays the role of precise gap adjustment.
- 🔇 Noise Reduction: The spring pad reduces vibration of the connector, lowers noise levels, and improves overall usage comfort.
The hexagonal outer screw with spring cushion 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 across various industries.
Frequently Asked Questions
What is a hexagonal screw with spring washer combination bolt?
It is a fastening assembly that combines a hex head bolt with a spring (lock) washer, designed to provide a secure and vibration-resistant connection in a single pre-assembled unit.
What thread sizes are available for this combination bolt?
These combination bolts are commonly available in standard metric thread sizes including M3, M4, M5, M6, M8, M10, and M12, covering a wide range of industrial applications.
How does the spring washer prevent loosening?
The spring washer acts as an elastic component that maintains constant pressure between the bolt head and the mating surface. Under vibration or dynamic loads, it compensates for any slight movement, keeping the bolt firmly in place.
What industries commonly use hex head combination bolts with spring washers?
They are widely used in electronics, electrical appliances, power generation, furniture manufacturing, chemical engineering, water conservancy projects, shipbuilding, and general industrial machinery assembly and maintenance.
Is the galvanized surface treatment suitable for outdoor or humid environments?
Yes. The galvanized coating provides excellent corrosion resistance, making these combination bolts suitable for use in outdoor environments, humid conditions, and applications where exposure to moisture or mild chemicals is expected.
Can the spring washer combination bolt help reduce noise in mechanical assemblies?
Yes. The spring washer absorbs vibrations transmitted through the fastener joint, which in turn reduces structural noise generated by mechanical movement, improving the overall comfort and performance of the assembly.