Blind Rivets: Efficient Fasteners for Single-Side Riveting

Blind Rivets: Practical Fasteners for Single-Side Riveting, Solving Construction Challenges

In the field of fastener technology, blind rivets are high-performance single-side riveting products. Their core technical advantage lies in "no need for double-sided operation", which can effectively overcome the connection difficulties of inconvenient construction on the reverse side of components.

Compared with traditional rivets, only a special tool is required to pull the mandrel during operation, prompting the rivet body to expand and deform to achieve a firm connection of components. This significantly improves riveting efficiency, especially suitable for installation operations in special working conditions such as closed structures and narrow spaces.

Material Classification of Blind Rivets: Performance Selection for Different Scenarios

Material selection is a key link in blind rivet selection, directly determining its applicable scenarios and performance.

• Aluminum (alloy) material: The most widely used, combining lightweight characteristics and good corrosion resistance, suitable for fields sensitive to component weight.
• Carbon steel (iron) material: Core advantage is high strength and stronger load-bearing capacity, widely used in mechanical parts, heavy equipment and other scenarios with high load-bearing requirements.
• Stainless steel material: Possesses excellent corrosion resistance and structural strength simultaneously. Even in outdoor humid environments or acid-base medium working conditions, it can maintain stable performance, more suitable for harsh environments such as outdoor facilities and chemical equipment.
  

  
  Aluminum (alloy) material                     Carbon steel (iron) material                    Stainless steel material

Common Types and National Standards of Blind Rivets: Differences from Basic to Sealed Types

Common standard blind rivets mainly include the following types, which can be selected according to actual application needs:

1. Open-end round head blind rivets (GB/T 12618): As a general-purpose product in basic models, its head adopts a rounded arc design without sharp edges and corners, combining aesthetics and practicality. This type of rivet has stable mandrel breaking force, can ensure firm connection even when used for riveting thinner plates, and has significant cost advantages. It is suitable for basic connection demand scenarios such as electrical chassis cabinet assembly, aluminum alloy and stainless steel door and window manufacturing.
   
   
2. Open-end countersunk head blind rivets (GB/T 12617): Specifically designed for the demand of "flat component surface", the head adopts a countersunk structure. Only a pre-set countersink is needed on the component, and the head can be flush with the component surface after riveting, avoiding protruding structures affecting the subsequent assembly process and ensuring the integrity of the appearance. It is suitable for scenarios such as instrument housings (ensuring panel fit without interfering with operation), automotive interior panels (preventing scratches on fabrics), and furniture drawer slides (avoiding damage to clothes).
   
   
3. Closed-end round head blind rivets (GB/T 12615): Core performance focuses on sealing protection. The tail of the rivet body is a closed structure, and a sealed cavity can be formed after the mandrel is broken, effectively blocking the intrusion of moisture, dust, oil and other impurities. It is suitable for scenarios requiring sealing performance such as outdoor lighting (preventing short circuits caused by rainwater), automotive chassis pipelines (resisting the erosion of dirt and sand), and aquarium frames (blocking water vapor penetration).
   
   

Special Blind Rivets for Specific Working Conditions

1. Lantern rivets: Named because the rivet cap is lantern-shaped after riveting. Its unique three-legged support structure can achieve uniform pressure distribution, suitable for fragile or flexible materials such as glass, plastic and rubber, and can effectively avoid cracks or deformation of materials during riveting.
   
   
2. Double drum blind rivets: The double drum structure increases the contact area with the riveted parts, can distribute riveting pressure more evenly, thereby improving tensile and shear strength and ensuring connection stability. It is suitable for riveting operations of thin and light structural parts.
   
   
3. Cup-type drawn rivets: Composed of two parts: rivet body and mandrel. The head of the mandrel adopts a cup-type design with free contraction deformation capacity. The rivet body is pre-set with grooves. When the mandrel is pulled into the rivet body, the broken nail can be flanged and embedded into the groove, significantly improving riveting strength.
   
   
4. Seahorse blind rivets: After riveting, the rivet sleeve expands into a seahorse abdomen shape, which can tightly fill the gap between the connected parts to form a firm mechanical engagement structure. It has excellent tensile, shear performance, shock resistance and impact resistance.
   
   

Multi-Industry Applications of Blind Rivets: Covering Automotive, Construction, Electronics and Other Fields

Relying on diverse performance advantages, blind rivets are widely used in various industry scenarios:

• In the automotive industry: Aluminum alloy or stainless steel products are selected to connect body accessories and chassis, balancing lightweight requirements with vibration and corrosion resistance.
• In the construction field: Carbon steel or stainless steel products are used to install curtain walls and steel structures, ensuring the safety and efficiency of high-altitude operations.
• In the electronics industry: Small aluminum alloy products are used to connect home appliances and communication equipment, adapting to precision installation needs.
• For outdoor guardrails, billboards, lighting fixtures and other scenarios: Closed-type products are preferred to extend the service life of components through sealing performance.