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

About this product

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.