The M12 Stainless Steel Rhomboid Head T-Bolt with Antiskid Teeth for Curtain Wall is a high-performance, specialized fastener engineered for robust and secure attachment in modern curtain wall systems. Its unique head design and integrated antiskid features are tailored to meet the stringent demands of architectural facades, providing stability, durability, and corrosion resistance.

Key Features & Specifications

• Material: Made from high-grade Stainless Steel (e.g., A2/304 or A4/316).
  • Stainless Steel Advantage: Provides excellent corrosion resistance, crucial for exterior applications exposed to atmospheric conditions, moisture, and pollutants. A4/316 offers superior resistance in coastal or highly corrosive industrial environments.
• Size: M12 (Metric thread with a 12mm nominal diameter).
  • M12 Specification: Denotes the bolt’s diameter and corresponding thread pitch, ensuring compatibility with standard M12 nuts and mating components in curtain wall substructures.
• Head Type: Rhomboid Head (Diamond-shaped head).
  • Rhomboid Head Design: This specialized head shape is engineered to fit precisely into specific channels or profiles often found in curtain wall mounting systems (e.g., slotted aluminum extrusions or anchor channels). It allows for easier insertion and rotation to lock into the channel, providing a secure anchor point. Its unique geometry can also aid in alignment.
• Antiskid Teeth (Serrations): Integrated serrations or teeth on the underside of the rhomboid head.
  • Antiskid Function: These teeth are designed to bite into the surface of the mating component (e.g., the steel rail, aluminum profile, or washer) upon tightening. This significantly increases friction, preventing the bolt from loosening due to vibration, thermal expansion/contraction, or dynamic loads, thereby enhancing the long-term stability and safety of the curtain wall connection.
• Thread Type: Typically a standard metric coarse thread, but fine thread options may also be available for specific applications requiring greater self-locking performance.

Application in Curtain Wall Systems

This specialized T-bolt is a critical component for fastening cladding panels (glass, stone, metal composites, etc.) to the primary structural frame of a building in a curtain wall system. Its application involves:

1. Anchoring to Support Structures: The rhomboid head slides into pre-fabricated anchor channels or specialized profiles that are typically fixed to the building’s concrete or steel primary structure.
2. Connecting Sub-frames/Brackets: It is used to securely attach the secondary aluminum or steel sub-frame (which directly holds the cladding panels) to the main building structure via the anchor channels.
3. Adjustability and Alignment: The design allows for some degree of adjustment along the channel before final tightening, facilitating precise alignment of the curtain wall components during installation.
4. Ensuring Structural Integrity: The stainless steel material, M12 strength, and antiskid teeth collectively ensure a durable, corrosion-resistant, and vibration-proof connection, maintaining the structural integrity and safety of the entire facade over its lifespan, especially in areas subjected to wind loads, seismic activity, and thermal cycling.

Benefits

• Enhanced Security: Antiskid teeth prevent loosening, crucial for high-rise facade stability.
• Corrosion Resistance: Stainless steel ensures longevity in exposed architectural environments.
• Precise Fit: Rhomboid head design ensures optimal engagement with curtain wall channels.
• Reliable Performance: M12 sizing provides adequate strength for demanding structural connections.
• Ease of Installation: Allows for efficient and accurate assembly within specialized profiles.