125 Extended Spindle Kit

The Gainsborough Extended Spindle Kit is designed to enable the installation of 300 Series lever sets on thicker doors ranging from 45mm to 50mm. Ideal for residential and light commercial applications, this kit provides the additional spindle length required to ensure secure, reliable operation on doors exceeding standard thickness.

Manufactured for easy installation, the extended spindle kit is the perfect solution when fitting 300 Series lever handles to thick doors. It delivers a precise fit while maintaining the performance and durability of your door hardware.

Features

• Designed specifically for Gainsborough 300 Series lever sets
• Suitable for doors 45mm to 50mm thick
• Extended spindle provides secure operation on thicker doors
• Ideal for residential and light commercial door installations
• Quick and easy to install
• Precision-engineered for reliable performance
• Helps ensure correct handle alignment and smooth operation
• Standard spindle kits are also available for 35mm to 42mm thick doors

Specifications

• Product Type: Extended Spindle Kit
• Application: Internal & External Doors
• Compatible Range: Gainsborough 300 Series
• Suitable Door Thickness: 45–50mm
• Installation: Easy installation
• Latch Included: No