Check the listing for details. Door Knob Spindle, 140mm Long Door Handle Spindle Replacement, Silver Tone. Condition: New. Listed at 14.30 USD. Description:Material & Durability: The door spindle bar is made of galvanized solid iron, which is resistant to rust, corrosion, and wear, and is not easily deformed or broken, allowing it to withstand long-term daily use.Functional Design: The slotted end on this spindle is made to engage securely with the set screw inside many common door handles. Its square profile is engineered to turn smoothly without slipping, ensuring reliable operation of the door mechanism. Slotted square steel replaces segmented square steel; the rounding of the shaft does not hurt your hands.Simple Installation: To install, simply use a wrench to loosen the fixing screw on your door handle. The old spindle will slide out along with the handle, allowing you to easily insert this new spindle in its place.