2. Nylon Expansion Systems

- Special Direct System drill bits.

- Used for drilling masonry.

- For fastening steel or aluminium into areated concrete.

- Stainless steel fastener.

- Carbon steel or stainless steel.

- 10mm pilot hole.

- 13mm A/F and Torx 40.

- Carbon steel

- 10mm pilot hole.

- Countersunk.

- Torx 40.

- Stainless steel or carbon steel.

- 10mm pilot hole. Hexagon head 13mm A/F and Torx 40.

- Carbon steel or stainless steel.

- 6mm pilot hole.

- Carbon steel or stainless steel.

- 6mm pilot hole.