About this item

• Vintage Style Compatibility: These square drive spindles are used with vintage style door knobs and mortise lock systems
• Precise Dimensions: Actual size is 17/64-inch x 17/64-inch x 3-1/2-inch (does not fit 1/4-inch)
• Custom Threading: This item features 3/8-inch - 20 custom thread intended for door handles
• Durable Construction: Zinc plated steel construction for durability
• Important Sizing Information: Please refer to the line art drawing for dimensions and compare with your needs before ordering (Not Universal)
• Square Opening Compatibility: This square spindle fits 9/32 inch and 5/16 inch square openings, ensuring proper installation with compatible door hardware
• Value Pack: Comes in a convenient 2-pack set, providing replacement spindles for multiple doors or backup for future needs

These replacement spindles are used on vintage style door knob systems. They feature 3/8 inch–20 custom threading and come in a zinc plated finish. The nominal size of these shafts measure 1/4 inch x 1/4 inch x 3-1/2 inch, BUT their actual size is 17/64 inch x 17/64 inch x 3-1/2 inch. This square spindle fits 9/32 inch and 5/16 inch square openings, but it will NOT fit into 1/4 inch square drives. To ensure your handle secures to this spindle make sure to use a mid-grade adhesive on the tips of the threading to help "lock" the handle in place. Nominal size is 1/4 inch x 1/4 inch x 3-1/2 inch