Door handle accessories - Material and durability: This steel lock accessory is built for durability and wear resistance. It includes a split spindle rod to support reliable door handle operation. Square steel bar - Compatibility and flexibility: The versatile square steel bar design fits with a range of locks and provides flexibility and comfort. It includes a split bar option suitable for fingerprint lock installations. Lock handle transfer rod - Broad compatibility and ease of use: The split spindle design can accommodate different door lock configurations, ensuring compatibility and user friendly operation. Suitable as a door handle split spindle component. Square steel rod - Enhanced protection with fingerprint locks: When used with a fingerprint lock, this split spindle offers improved protection and features a square spindle configuration for secure fit. Use scenarios - Scenario 1: Upgrading a door to a fingerprint lock in a residence. The split spindle and compatible components allow smooth operation with the fingerprint lock system and existing door hardware. - Scenario 2: Retrofitting multiple doors in an office building that use different lock brands. The versatile split spindle and square spindle designs provide broad compatibility across lock types. - Scenario 3: High traffic entry doors in a commercial setting. The steel construction resists wear and extends component life while maintaining reliable performance with fingerprint and non fingerprint locks.