A double threaded hanger bolt specifically designed for concrete applications is a specialized fastener used to provide a secure anchoring point in concrete structures. Unlike hanger bolts for wood, these bolts feature a concrete-specific anchoring mechanism on one end (such as a wedge anchor, sleeve anchor, or drop-in anchor design) that creates a strong, non-removable bond with the concrete. The other end typically features a standard machine screw thread, allowing for the attachment of various fixtures, solar panel racking systems, or other components using nuts, washers, or adapters. These bolts are crucial for installations where a robust and reliable threaded connection is required in concrete without the need for extensive drilling or chemical anchors for simple attachments.

Definition

The double threaded hanger bolt for concrete is an anchoring fastener comprised of a concrete-specific expansion or mechanical anchor mechanism on one end, designed for permanent and secure embedment into concrete, and a machine screw thread on the opposing end. This configuration provides a stable, projecting threaded stud from a concrete substrate, enabling the attachment of secondary components such as mounting brackets, pipes, or electrical fixtures, ensuring a durable and load-bearing connection.

Advantages

• Strong Concrete Anchorage: Engineered with specific concrete anchoring mechanisms (e.g., wedge, sleeve, or drop-in designs) to provide high pull-out and shear strength in solid concrete.
• Reliable Threaded Connection: The machine screw end offers a standard, widely compatible thread for attaching a variety of nuts, washers, and fixtures.
• Efficient Installation: Depending on the design, these bolts often allow for quicker installation compared to some chemical anchoring methods, though accurate drilling is critical.
• Versatile Applications: Suitable for a broad range of uses, from heavy-duty structural attachments to lighter installations in concrete.
• Secure & Durable: Designed to withstand the rigors of concrete environments, often made from corrosion-resistant materials for long-term performance.

Applications

• Solar Panel Mounting: Crucial for attaching solar panel racking systems to concrete roofs or foundations, ensuring a strong and durable anchorage.
• HVAC and Electrical Installations: Used to secure conduit, piping, ductwork, and electrical boxes to concrete walls and ceilings.
• Suspension Systems: Ideal for hanging heavy items, false ceilings, or suspended equipment from concrete slabs.
• Fixture Installation: For mounting various fixtures, signs, or brackets to concrete walls or floors in commercial and industrial settings.
• Structural Reinforcement: Can be used in certain applications to attach secondary structures or components to primary concrete elements.
• Machinery and Equipment Anchoring: Provides robust anchoring for machinery, railings, and other equipment to concrete bases.