Installation Instructions for a Hook/Knob Using a Double-Threaded Stud

• Hook or Furniture Knob (through hole with M4 thread in the base)

• Double-threaded stud M4 × 40 mm / 50 mm (length 40 mm / 50 mm):

  https://scandinavian-handles.com/en_GB/p/Double-thread-pin-M4-40-for-hangers/5609 https://scandinavian-handles.com/en_GB/p/M4-50-double-threaded-pin-for-hangers/20160
• Expansion plug with internal M4 thread (e.g. nylon M4 plug for concrete/brick)
• Drill, 6 mm masonry drill bit (standard for M4 plug), hammer, spirit level, pencil, measuring tape.

1. Mark the Mounting Location

• Mark the mounting location. Typical height is about 160–175 cm from the floor to the bottom edge of the hook (adjust according to household members' height).
• Hold the hook against the wall, check with a spirit level and mark the centre of the mounting hole with a pencil.

2. Drill the Hole

• Drill a 6 mm hole to a depth of about 35–55 mm (for M4 plug).
• Clean the hole from dust (vacuum/blow out).

3. Insert the M4 Threaded Plug

• Tap the M4 expansion plug into the hole (light hammer taps).
• Screw the M4 × 40 / 50 double-threaded stud into it (sharp end) so that about 15–20 mm protrudes from the wall (the rest is inside the plug).

4. Attach the Hook to the Stud

• Slide the hook onto the protruding stud through the hole in the base.
• If the set includes a decorative nut/cover – place it on the stud on the outside of the hook.

5. Tighten and Level

• Gently tighten the hook until it is stable and does not rotate.
• Check with a spirit level; if uneven – loosen, adjust and tighten again.
• Do not overtighten (plaster/wood may crack if excessive force is used).