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WOODSPREAD

TRB FOR WOOD AND EXPANDED MATERIALS

WOODSPREAD is an insert designed for installation in conical holes in wood or composite materials. Its particular knurling makes it particularly resistant to the pull-out and clamping forces of the tightened screw.

Technical data

TRB INSERTS

STANDARD MATERIAL

Brass (B)

BENEFITS

  • Designed for use in cylindrical holes. High pull-out resistance.
  • Avoids the problems typical of installing self-tapping screws directly into wood.
  • High thrust resistance.
  • Use of metric screws from M4 to M10 and possibility for repeated tightening and loosening cycles without altering the mechanical properties of the joint.

DESIGN GUIDE

PREPARING THE HOLE

The hole needs to be cylindrical. Blind holes need to be at least 10% deeper than the length of the insert.

INSTALLATION

WOODSPREAD is a press-in insert that is easy to install and expands for a secure fit with the help of the dual pattern of knurling.

WALL THICKNESS

We recommend thick walls around the insert with a minimum total width of the boss of at least twice the outer diameter of the insert.

INSTALLATION

Press the insert into the pre-drilled hole. When tightened, the screw will expand the insert and press the knurling into the walls for greater grip.

CROSS-SECTION OF THE HOLE IN THE PLASTIC

WOODSPREAD

TRB FOR WOOD AND EXPANDED MATERIALS

Download the technical specifications

Here you can get a PDF with the product’s full technical specifications.

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