The FSP expansion plugs enable solid and INVISIBLE fastening of wooden stair steps to concrete
substrates and steel framing.
- Expansion section size Ø8 x 40 mm
- Wood fixing part size. Ø14 x 22 mm
- Material resistant to shocks and aging
- The set includes: plug, screws, levelling washers, carpentry markers
- Screw with countersunk head (PZ3)
Installation instructions: Drill four holes in the bas material with Ø8 drill to a depth of about
45 mm. Put the carpenter’s markers into the holes and arrange the step you want to fix. When it is
adjusted properly, press it against the base, thus marking the location of holes on the step. Remove the
markers from the base material, insert the FSP pins (expansion parts) and fix them with screws. Using
a wood drill, drill holes of Ø14 mm and depth of 23 – 24 mm in the locations marked earlier. Level
the step with the washers. Before fixing the step, damping mats or foam may be applied on the base
material. Apply glue into the holes in the step and fix the step on the pins.