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PETAL-SHAPE RIVETING EXPANSION SCREW
WANDA-AN
PRES-SS010
PETAL-SHAPE RIVETING EXPANSION SCREW NUTS
CHARACTERISTICS:
Expansion Mechanism:During installation,the nut expands outward,increasing the contact area with the substrate,thereby providing a stronger holding force.
Uniform Pressure Distribution:The petal-shaped design allows the applied force to be evenly distributed,reducing damage to the installation material.
Anti-loosening Design:Due to the structural characteristics of the expansion nut,it effectively prevents loosening caused by vibrations or other external forces.
Strong Applicability:It can be used on a variety of substrates,such as concrete and brick,making it highly adaptable.
Easy Installation:Generally,the installation process is simple and suitable for quickly securing various equipment and structures.
Corrosion Resistance:Many petal-shaped expansion screws are made from corrosion-resistant materials,making them suitable for use in damp or corrosive environments.
FUNCTIONS
Strong Anchoring:They provide a reliable and secure anchoring solution in various materials,ensuring that fixtures remain firmly in place.
Load Distribution:The petal design helps distribute loads evenly,reducing stress on the surrounding material and minimizing the risk of cracking or damage.
Vibration Resistance:Their unique structure helps resist loosening due to vibrations or dynamic loads,making them suitable for applications in machinery or structures subject to movement.
Versatility:These screws can be used in a wide range of substrates,including concrete,brick,and masonry,allowing for flexibility in construction and installation projects.
Safety and Reliability:Their design contributes to the overall safety and reliability of structures by providing secure attachments for fixtures,equipment,or components.
APPLICATIONS:
Construction:Used to secure structural elements,such as beams and brackets,to concrete and masonry walls.
Furniture Installation:Ideal for anchoring heavy furniture,shelves,or cabinetry to walls,ensuring stability and safety.
Mechanical Engineering:Used to attach components and equipment in machinery where strong,vibration-resistant connections are required.
Electrical Fixtures:Employed in securing electrical panels,junction boxes,and other electrical fixtures to walls.
Signage and Displays:Suitable for mounting signs,displays,and other promotional materials on various surfaces.
HVAC Systems:Used to anchor ducts,vents,and other HVAC components to walls or ceilings.
Outdoor Applications:Commonly used in outdoor projects like fences,railings,and light fixtures,particularly those exposed to moisture or weather elements.
Renovation Projects:Useful in retrofitting existing structures where traditional fastening methods may not be effective.
Product Parameter
1. Precision stamping part,CNC machining part,turned part
2. Tolerance: ± 0. 01 - ± 0.1mm
3. Certificate: ISO 9001
4. Total customer satisfaction
1. General Information
Product Name: Petal-Shape Riveting Expansion Screw Nut (Self-Clinching Nut)
Type: Flared/Petal Expansion Design (Multi-Lobed Base)
Material:
Steel: Carbon Steel (Grade 8.8/10.9), Stainless Steel (A2/A4)
Aluminum: 5052, 6061 (Lightweight, corrosion-resistant)
Surface Finish: Zinc Plated, Nickel Plated, Passivated, Anodized (Aluminum)
Standard: DIN, ISO, or Custom OEM Specifications
| 2. Dimensions & Key Parameters | |||||
| Size (M) | Thread Pitch | Head Diameter (D) | Petal Count | Expanded Diameter (De) | Grip Range (T) |
| M3 | 0.5 | 6.0 mm | 4-6 petals | 7.5 mm | 0.5–2.0 mm |
| M4 | 0.7 | 8.0 mm | 4-6 petals | 9.5 mm | 0.8–2.5 mm |
| M5 | 0.8 | 9.5 mm | 6 petals | 11.0 mm | 1.0–3.0 mm |
| M6 | 1 | 11.0 mm | 6 petals | 13.0 mm | 1.2–4.0 mm |
3. Mechanical Properties
Tensile Strength:
Steel (Grade 8.8): 800 MPa
Stainless (A2-70): 700 MPa
Aluminum: 300–350 MPa
Torque Resistance: 50–150% higher than standard nuts due to petal expansion.
Vibration Resistance: Excellent (petals prevent loosening).
4. Installation Method
Hole Preparation: Drill/Punch a pre-sized hole in the sheet metal.
Insertion: Place the nut into the hole.
Riveting: Apply axial force (hydraulic/pneumatic press) to flare petals, locking the nut permanently.
5. Features
Petal Design: Expands radially to grip sheet material securely.
Flush Mounting: Low-profile head for smooth surfaces.
No Welding Required: Ideal for thin materials (0.5–6 mm thickness).
Reusable Threads: Internal threads remain intact post-installation.
6. Applications
Electronics: PCB mounts, enclosures.
Automotive: Body panels, brackets.
Aerospace: Lightweight assemblies.
HVAC & Furniture: Sheet metal joints.
7. Compliance & Packaging
Standards: ISO 15983 (self-clinching fasteners), RoHS compliant.
Packaging: 100–500 pcs/box, or custom reels.
PETAL-SHAPE RIVETING EXPANSION SCREW NUTS
CHARACTERISTICS:
Expansion Mechanism:During installation,the nut expands outward,increasing the contact area with the substrate,thereby providing a stronger holding force.
Uniform Pressure Distribution:The petal-shaped design allows the applied force to be evenly distributed,reducing damage to the installation material.
Anti-loosening Design:Due to the structural characteristics of the expansion nut,it effectively prevents loosening caused by vibrations or other external forces.
Strong Applicability:It can be used on a variety of substrates,such as concrete and brick,making it highly adaptable.
Easy Installation:Generally,the installation process is simple and suitable for quickly securing various equipment and structures.
Corrosion Resistance:Many petal-shaped expansion screws are made from corrosion-resistant materials,making them suitable for use in damp or corrosive environments.
FUNCTIONS
Strong Anchoring:They provide a reliable and secure anchoring solution in various materials,ensuring that fixtures remain firmly in place.
Load Distribution:The petal design helps distribute loads evenly,reducing stress on the surrounding material and minimizing the risk of cracking or damage.
Vibration Resistance:Their unique structure helps resist loosening due to vibrations or dynamic loads,making them suitable for applications in machinery or structures subject to movement.
Versatility:These screws can be used in a wide range of substrates,including concrete,brick,and masonry,allowing for flexibility in construction and installation projects.
Safety and Reliability:Their design contributes to the overall safety and reliability of structures by providing secure attachments for fixtures,equipment,or components.
APPLICATIONS:
Construction:Used to secure structural elements,such as beams and brackets,to concrete and masonry walls.
Furniture Installation:Ideal for anchoring heavy furniture,shelves,or cabinetry to walls,ensuring stability and safety.
Mechanical Engineering:Used to attach components and equipment in machinery where strong,vibration-resistant connections are required.
Electrical Fixtures:Employed in securing electrical panels,junction boxes,and other electrical fixtures to walls.
Signage and Displays:Suitable for mounting signs,displays,and other promotional materials on various surfaces.
HVAC Systems:Used to anchor ducts,vents,and other HVAC components to walls or ceilings.
Outdoor Applications:Commonly used in outdoor projects like fences,railings,and light fixtures,particularly those exposed to moisture or weather elements.
Renovation Projects:Useful in retrofitting existing structures where traditional fastening methods may not be effective.
Product Parameter
1. Precision stamping part,CNC machining part,turned part
2. Tolerance: ± 0. 01 - ± 0.1mm
3. Certificate: ISO 9001
4. Total customer satisfaction
1. General Information
Product Name: Petal-Shape Riveting Expansion Screw Nut (Self-Clinching Nut)
Type: Flared/Petal Expansion Design (Multi-Lobed Base)
Material:
Steel: Carbon Steel (Grade 8.8/10.9), Stainless Steel (A2/A4)
Aluminum: 5052, 6061 (Lightweight, corrosion-resistant)
Surface Finish: Zinc Plated, Nickel Plated, Passivated, Anodized (Aluminum)
Standard: DIN, ISO, or Custom OEM Specifications
| 2. Dimensions & Key Parameters | |||||
| Size (M) | Thread Pitch | Head Diameter (D) | Petal Count | Expanded Diameter (De) | Grip Range (T) |
| M3 | 0.5 | 6.0 mm | 4-6 petals | 7.5 mm | 0.5–2.0 mm |
| M4 | 0.7 | 8.0 mm | 4-6 petals | 9.5 mm | 0.8–2.5 mm |
| M5 | 0.8 | 9.5 mm | 6 petals | 11.0 mm | 1.0–3.0 mm |
| M6 | 1 | 11.0 mm | 6 petals | 13.0 mm | 1.2–4.0 mm |
3. Mechanical Properties
Tensile Strength:
Steel (Grade 8.8): 800 MPa
Stainless (A2-70): 700 MPa
Aluminum: 300–350 MPa
Torque Resistance: 50–150% higher than standard nuts due to petal expansion.
Vibration Resistance: Excellent (petals prevent loosening).
4. Installation Method
Hole Preparation: Drill/Punch a pre-sized hole in the sheet metal.
Insertion: Place the nut into the hole.
Riveting: Apply axial force (hydraulic/pneumatic press) to flare petals, locking the nut permanently.
5. Features
Petal Design: Expands radially to grip sheet material securely.
Flush Mounting: Low-profile head for smooth surfaces.
No Welding Required: Ideal for thin materials (0.5–6 mm thickness).
Reusable Threads: Internal threads remain intact post-installation.
6. Applications
Electronics: PCB mounts, enclosures.
Automotive: Body panels, brackets.
Aerospace: Lightweight assemblies.
HVAC & Furniture: Sheet metal joints.
7. Compliance & Packaging
Standards: ISO 15983 (self-clinching fasteners), RoHS compliant.
Packaging: 100–500 pcs/box, or custom reels.
