HLM INDUSTRY Double Flared Coil Loop Insert

The insert’s open-loop design creates a clearance zone between coils, enabling it to bridge across reinforcing steel or prestressing tendons.​

•  Bolt Diameter: 1″ to 1-1/2″
• SWL Tension: 13,500 lbs
•  Enhanced Load Capacity:​​ The safe working load of the Double Flared Coil Loop Insert is significantly higher than that of the single flared version.
• Structural Implementation:​​ This improvement is achieved by welding a second loop to the same coil.
• Material Reinforcement Effect:​​ The additional loop doubles the total cross-sectional area of steel embedded in the concrete.
• Mechanical Performance Optimization:​​ It simultaneously expands the shear cone area in the concrete, further enhancing anchoring reliability.

HLM INDUSTRY Double Flared Criss Cross Coil Loop Insert

Compact Four-Strut Design Delivers High Strength and Versatility, Especially in Low-Strength Concrete Applications.​​

•  Bolt Diameter: 1″ to 1-1/2″
• SWL Tension: 13,500 lbs
• Identical Safe Working Load:​​ The Double Flared Coil Loop Insert exhibits the exact same safe working load as the Double Flared Coil Loop.
• Structural Design Limitation:​​ Its crisscross configuration prevents the insert from straddling reinforcing steel or prestressing strands.