Hollow-bar nails

Hollow-bar nails consist of three main components: the nail head, the steel tendon – including sleeve and single-use drill bit – and the grout body. The steel tendon is a hollow steel bar with coldrolled round thread and can therefore be cut or joined at any desired point.

 

Features

  • Nationally approved system with internal and external quality control
  • Well suited to transport and assembly conditions thanks to delivery in parts with couplers
  • A wide selection of drill bits allows use in a wide range of soil types
  • Simple to adapt to required length on site, e.g. with varying geological conditions by using partial sections with couplers
  • Excellent bond between SHS-bar and cement mortar thanks to threaded ribs
  • Can be closely matched to the required loads thanks to wide range of cross-sections
  • Facilitates rapid building progress since drilling, installation and injection of the nail are carried out in a single operation

Types available:

Temporary nails

  • Temporary nails (service life up to 2 years)

Permanent nails

  • Semi-permanent nails, untreated, allowing for a soil-dependent corrosion rate (service life up to 50 years)
  • Semi-permanent nails, hot-dip galvanised, allowing for a soil-dependent corrosion rate (service life up to 50 years)

Hollow-bar-nails

tendon

ultimate load

yield load 0.2%

design load

Ø

Fpk

Fp0.2

Rd = Fp0.2 / 1.15

[mm]

[kN]

[kN]

[kN]

H 0210-32

210

170

148

H 0250-32

250

190

165

H 0280-32

280

230

200

H 0360-32

360

280

243

H 0400-32

400

330

287

H 0420-38

420

350

304

H 0500-38

500

400

348

H 0630-51

630

530

461

H 0800-51

800

630

548