Lindapter Type HB Hollo-Bolt Hexagonal Head M20 x 80mm

Product code: HB20-1

Hollo-Bolt expansion bolts require access to only one side of the Structural Hollow Section (SHS), and offer a faster alternative to welding or through-bolting, enabling contractors to reduce construction time and labour costs. Installation is quickly carried out by inserting into pre-drilled steelwork and tightening with a torque wrench. Also suitable for blind connections where access is available from one side only.

The larger M16 and M20 Hollo-Bolts are optimised for high strength structural connections and feature a unique High Clamping Force (HCF) mechanism for superior performance.

• Fast, cost saving installation from one side
• For square, rectangular and circular hollow sections
• High resistance to shear and tension
• Unique High Clamping Force design (size M16 & M20)
• Low temperature tested to -45°C (carbon steel variants)
  
• Independently tested for dynamic load applications to EN 1993-1-9. Contact us for more details

Specifications:

• Bolt Ø Z: M20
• Height (mm): 22.5
• Length (mm): 80
• Clamping Thickness (mm): 12 - 34
• Outer Ply (mm): 8
• Sleeve Outer Ø (mm): 32.75
• Collar Ø: D (mm): 51 / A/F (mm): 46
• Tightening Torque (Nm): 300
• Safe Working Loads (5:1 Factor of Safety): Tensile (kN): 35.0 / Single Shear (kN): 40.0

*Packaging on these products may be damaged or showing signs of wear and tear and may be reboxed but all products are in good working condition. These products are non-returnable and non-refundable and once they are gone they are gone.