Home > Companies > Fixfast Ltd > Lindapter® Hollo-Bolt®

Steel bolting, used in applications where standard nuts and bolts aren't appropriate. During installation, the bolt sleeves expand whilst the grooves of the bolts interlock to prevent loosening. There are three variations of the bolt available – hexagonal, countersunk and flush fit.

A typical connection is made by inserting the Hollo-Bolt® into the pre-drilled holes of the fixture and hollow section. As the bolt head is tightened, the cone is pulled up the bolt thread, causing the sleeve to expand until the cone locks the sleeve against the hollow section’s inner wall.

Features and benefits:

  • Fast, cost saving installation from one side.
  • Suitable for square, rectangular and circular hollow sections.
  • High resistance to tension.
  • Patented, high clamping force design.
  • A range of head types for architectural finishes.
  • Manufactured in accordance with ISO 9001 and ISO 14001 Quality and Management Systems.
  • CE marked, and has approvals from DIBt, TÜV and ICC-ES Seismic.

Applications:

Typically used to attach brackets, cleats, and support rails to box section steelwork or closed steelwork. Used in the following:

  • Metal roofing.
  • Cladding.
  • Facades.
  • Structural steel market.

Installation is carried out by inserting into pre-drilled steelwork and tightening with a torque wrench – see manufacturer's literature for further details.

Options

Size:

- M16/ M20 HCF:

Produces three times more clamping force than the same sized product without the mechanism. Suitable for higher strength structural connections. Consists of a special rubber washer that compresses during installation to significantly increase the clamping force between the connecting steelwork. Sizes M16 and M20 require the thickness of the outer ply to be at least 8 mm.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-50-05/320 Hammer-in fasteners

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying

Manufacturer

Name:

Fixfast Ltd

Tel:

+44 (0)1732 882387

Product reference

Lindapter® Hollo-Bolt®

Type

[Countersunk]
-
Minimal visible protrusion. Consult manufacturer's literature and insert product code.
[Flush fit]
-
Zero visible protrusion. Consult manufacturer's literature and insert product code.
[Hexagonal]
-
Normal visible protrusion. Consult manufacturer's literature and insert product code.

Size

[M8]
[M10]
[M12]
[M16 HCF]
-
With high clamping force mechanism. Not available for flush fit.
[M20 HCF]
-
With high clamping force mechanism. Not available for countersunk or flush fit.

Finish

[Hot dip galvanized]
-
Not available for countersunk or flush fit.
[JS500]
[Sheraplex]
[Stainless steel]

Manufacturer details

Merlin House,
Seven Mile Lane,
Borough Green,
Sevenoaks,
Kent, TN15 8QY
Tel +44 (0)1732 882387
Fax +44 (0)1732 885532
NBS Plus
RIBA CPD