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Prev: Insert Nuts For Wood Type A 
Type B Insert Nuts for Wood, or Knock In Insert Type B, provide a strong, permanent thread with their barbed-style within wood and wood-based materials, providing substantial holding power even when torqued laterally.
The insert nut’s coarse external barbed tooth pattern ensures maximum holding power and simplified installation – by just knocking the insert into the base material.
Type B Insert Nuts for Wood feature a round surface flange that increases its holding power and produces a finished appearance. The coarse external teeth and flange offer good retention on through-hole applications, while the internal threads ensure that connector bolts can be secured for furniture assembly.
Available as standard in Zinc Alloy ranging from M3 to M10 with other materials, finishes, and lengths available to order.
| Technical Data & Availability |
|||||
| Thread Diameter |
Length (mm) |
Flange Diameter (mm) |
Flange Thickness (mm) |
Pilot Hole (mm) |
Pitch (mm) |
| M3 | 8.0 | 8.5 | 1.0 | 4.1 to 4.5 | 0.50 |
| M3 | 9.5 | 9.5 | 1.0 | 4.1 to 4.5 | 0.50 |
| M4 | 9.5 | 10.5 | 1.5 | 5.6 to 6.0 | 0.70 |
| M4 | 11.5 | 10.5 | 1.5 | 5.6 to 6.0 | 0.70 |
| M5 |
12.00 | 12.5 | 2.0 | 7.1 to 7.5 | 0.80 |
| M5 | 15.00 | 12.5 | 2.0 | 5.6 to 6.0 | 0.80 |
| M6 | 10.5 | 16.0 | 2.0 | 8.6 to 9.0 | 1.00 |
| M6 | 12.5 | 14.5 | 2.5 | 8.6 to 9.0 | 1.00 |
| M6 | 15.5 | 14.5 | 2.5 | 8.6 to 9.0 | 1.00 |
| M8 | 11.5 | 19.0 | 2.0 | 9.5 to 9.9 | 1.25 |
| M8 | 15.5 | 19.0 | 2.0 | 9.5 to 9.9 | 1.25 |
| M8 | 16.0 | 14.0 | 2.0 | 9.5 to 9.9 | 1.25 |
| M8 | 20.5 | 25.0 | 2.0 | 9.5 to 9.9 | 1.25 |
| M8 | 23.0 | 19.0 | 1.0 | 9.5 to 9.9 | 1.25 |
| M10 | 16.0 | 13.0 | 1.0 | – | 1.2 |
