Metal Reduction Sleeve 8/9 Square Adapter for 9mm to 8mm Lock Spindle Retrofits

Product Overview

The Redukcja metalowa 8/9 kwadrat is a metal reduction sleeve used to adapt a 9 mm lock spindle hole (commonly referred to as the 'orzech') to accept a standard 8 mm square handle spindle. This component is typically employed in door hardware upgrades or repairs, particularly in commercial and residential environments where locks or handle sets need to be matched to varying spindle sizes.

Its precise sizing?reducing from 9 mm to 8 mm?effectively eliminates installation compatibility issues between newer lock bodies and standard handle spindles. This specific reduction sleeve is especially well-suited for maintenance teams and locksmiths handling mixed hardware inventories, as it allows quick adaptation without the need for full lock replacement.

Key Features

• Solid metal construction ? ensures durability for repeated installation and removal


• Reduces spindle hole ? adapts 9 mm lock orzech to fit standard 8 mm handle spindle


• Square profile ? guarantees proper torque transmission and handle stability


• Easy retrofit ? enables quick compatibility upgrades for existing door locks


• Universal fit ? suitable for both commercial and residential lock systems

Technical Specifications

• Material: Metal


• Spindle Hole Reduction: 9 mm to 8 mm


• Profile Shape: Square

Applications

Used in door locking systems for commercial, residential, and institutional buildings where handle spindles of 8 mm need to fit lock bodies designed for 9 mm square openings. Suitable for maintenance, upgrades, hardware repair, and retrofitting across mixed inventories and OEM procurement.

Packaging & Shipping

Standard export packaging. Unit includes reduction sleeve for spindle adaptation. Bulk quantities available for facility and hardware suppliers.