These spiral inserts are installed into a pre-drilled hole by screwing, with the external projections biting into the wood, preventing the nut from either turning or being pulled out.

Type d inserts are advantageous over barrel nuts and T-nuts as they can be installed from one side of the workpiece.

Suitable for softwoods such as pine, plywood, particle board, etc.

• Material: zinc alloy
• Size: M6x13mm
• Quantity: 12 pieces in total

Note: For easier installation, drill a hole of appropriate size before installation, enlarging the hole when the material is harder.