KB Self-locking press-fit threaded bushes

KB Self-locking press-fit threaded bushes

KB Self Locking is a self-locking threaded bushing, also known as a pressure insert, that allows for threaded seating on materials with even thin thicknesses, such as marble, granite, ceramics, laminates, and quartz. It is a mechanically retaining bushing that does not stress or create tensions in the material in which it is applied.

In the stone industry, it is a system used to attach sinks to natural stone or ceramic/quartz tops, or to attach stone or other material slabs to ventilated walls, and is also used for assembling furniture and interior design elements.

The bushing is inserted into a cylindrical hole (drilled using a standard drill) with a simple pressure without the use of adhesives. It consists of a stainless steel threaded sleeve (austenitic series 300 type) with a series of teeth crowns. The bushing does not create protrusions behind the slabs in order to optimize space.

The main applications of the KB Self Locking bushing are:

• production of kitchen tops, which speeds up work by quickly and cleanly securing sink fixtures without the use of chemical adhesives;
• production of furniture and interior design elements;
• installation of ventilated walls where bushings allow for superior fixing compared to the use of glue or resin.

Available in different sizes:

KB06/08/1N

• Thread M6
• Minimum thickness 8 mm (0.31”)
• Number of crowns 1
• Insert height 5 mm (0.20”)
• Hole depth 5,5 mm (0.22”)
• Pull resistance 1,1 kN

KB06/10/2N

• Thread M6
• Minimum thickness 10 mm (0.39”)
• Number of crowns 2
• Insert height 6 mm (0.24”)
• Hole depth 6,5 mm (0.26”)
• Pull resistance 2,1 kN

KB06/12/4N

• Thread M6
• Minimum thickness 12 mm (0.47”)
• Number of crowns 4
• Insert height 8 mm (0.31”)
• Hole depth 8,5 mm (0.33”)
• Pull resistance 4,1 kN

KB06/18/4N

• • Thread M6
  • Minimum thickness 18 mm (0.71”)
  • Number of crowns 4
  • Insert height 13 mm (0.51”)
  • Hole depth 13,5 mm (0.53”)
  • Pull resistance 5,5 kN

How to use these KB Self-locking press-fit threaded bushes?

1. Drill with a 12-diameter diamond core bit a hole deep enough to let the insert enter
2. Check that the hole is clean and no larger than 12mm
3. Insert the bush pressing it by a rubber mallet

KB Self Locking Press Fit Threaded Bushes