Yellow Zinc Plated Self-tapping Insert with Cutting Bore has a thick wall and the cutting force is distributed over three cutting edges, and it is ideally suited for the fast repair of torn and damaged threads.
This kind of self-tapping threaded inserts for wood and plastic is extensive. They are available in various sizes, ranging from M3 to M16, tailored for insertion into pre-formed or drilled holes.
Additionally, there are inserts equipped with three cutting bores, providing exceptional pull-out strength in sizes ranging from M3 to M30 with threads.

 
 
 
 
 
| Te papa'iraa aita. | A Internal thread | E External thread | P Pitch | L Length | SW Hexagonal socket | D Minimum borehole depth for blind holes | 
| L 307…01 | M3 | 5 | 0.6 | 4 | – | 6 | 
| L 308…01 | 6 | 8 | 
| L 307…02 | M3.5 | 6 | 0.8 | 5 | – | 7 | 
| L 308…02 | 8 | 10 | 
| L 307…03 | M4 | 6.5 | 0.8 | 6 | 3.2 | 8 | 
| L 308…03 | 8 | 10 | 
| L 307…04 | M5 | 8 | 1 | 7 | 4.1 | 9 | 
| L 308.. .04 | 10 | 13 | 
| L 307…05 | M6 | 10 | 1.25 | 8 | 4.9 | 10 | 
| L 308…05 | 12 | 15 | 
| L 307…06 | M8 | 12 | 1.5 | 9 | 6.6 | 11 | 
| L 308…06 | 14 | 17 | 
| L 307…07 | M10 | 14 | 1.5 | 10 | 8.3 | 13 | 
| L 308…07 | 18 | 22 | 
| L .307..08 | M12 | 16 | 1.75 | 12 | 10.1 | 15 | 
| L 308…08 | 22 | 26 | 
| L 307…09 | M14 | 18 | 2 | 14 | – | 17 | 
| L 308..09 | 24 | 28 | 
| L 307…10 | M16 | 20 | 2 | 14 | – | 17 | 
| L 308…10 | 24 | 28 | 
					 
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