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China Suppliers Factory Galvanized Hexagon Head Bolt Assemblies with Spring & Plain Washers for Construction
| Thread size d | M3 | M4 | M5 | M6 | M8 | M10 | M12 | |
| h ② | Public | 0.5 | 0.8 | 1 | 1.6 | 1.6 | 2.0 | 2.5 |
| H | Public | 2 | 2.75 | 3.25 | 4 | 5 | 6.25 | 7.5 |
| dc | Public | 7 | 9 | 10 | 12 | 16 | 20 | 24 |
| d2 | Reference | 5.23 | 6.78 | 8.75 | 10.71 | 13.64 | 16.59 | 19.53 |
| a | Max | 1.0 | 1.4 | 1.6 | 2.0 | 2.5 | 3.0 | 3.5 |
| 1,000 pieces of steel weigh ≈ kg | - | - | - | - | - | - | - | |
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1. Other size reference — Bolts: GB 5783; Washers: GB 9074.24, GB 9074.26 2. M8, M10, M12 H values and GB 9074.24-88 corresponding values are not consistent. |
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Key Functions of Hexagonal Screw with Flat & Spring Washer Assembly
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Buffering Effect In the process of mechanical operation, due to vibration, impact or temperature changes and other reasons, the cushioning effect of the elastic pad and the flat pad can effectively reduce the problems of loose screws or deformation of connecting parts, thus increasing the reliability of the connection.
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Locking Action The bolt-spring pad and flat pad can lock the position of the connecting part, keep it in the correct position, and prevent movement due to external force, ensuring the tightness and stability of the connection.
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Reducing Connection Component Damage Connecting components bearing screw connections often produce stress. The bolt with elastic pad and flat pad can bear these stresses, lighten the load on connecting parts, and avoid damage to the connecting components.
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Wide Application Fields Hexagon head screw with elastic pad is widely used across construction, automotive, mechanical, electronic, electrical, and other industries. In daily life, they are commonly seen in furniture assembly, electrical goods, and more.
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Specific Industrial Applications Hexagon head combination bolts are used in high-precision assemblies and high-impact environments. For example, in automobile manufacturing, they are widely used for body and engine installation. In mechanical equipment maintenance, they connect mechanical parts and components. In construction, they join steel structures.
💡 Summary: Hexagon screw with flat and spring washer is a versatile mechanical component, primarily used to provide stable connection and buffering, and is widely applied across various industrial and civil fields.
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❓ Frequently Asked Questions (FAQ)
Q What is a hexagon head bolt with spring washer and plain washer assembly?
It is a combination fastener consisting of a hexagon head bolt, a spring (elastic) washer, and a plain (flat) washer. This assembly is designed to provide secure, vibration-resistant connections in a wide range of mechanical and structural applications.
Q What is the purpose of the spring washer in this assembly?
The spring washer acts as a locking and buffering element. It absorbs vibration and dynamic loads, preventing the bolt from loosening over time due to mechanical movement, temperature changes, or impact forces.
Q What thread sizes are available for this hexagon bolt assembly?
This assembly is available in standard metric thread sizes including M3, M4, M5, M6, M8, M10, and M12, making it suitable for a broad range of applications from light-duty to heavy industrial use.
Q Which industries commonly use hexagon head bolt flat washer and spring washer assemblies?
These assemblies are widely used in the construction, automotive, mechanical engineering, electronics, and electrical industries. They are also found in everyday applications such as furniture assembly and consumer electrical goods.
Q What standards do these hexagon bolt assemblies conform to?
The assemblies reference Chinese national standards: bolts follow GB 5783, and washers follow GB 9074.24 and GB 9074.26. Please note that M8, M10, and M12 H values may differ from corresponding values in GB 9074.24-88.
Q Why should I choose your hexagon bolt assemblies over other suppliers?
We offer genuine products with strict quality assurance, competitive factory-direct pricing, and reliable supply. Our products are manufactured to meet international standards, ensuring consistent performance and long service life across all applications.