Size
- 3/8-16, coarser thread type fits many old door knobs
- 3-1/2" long , Width: 9/32" (7 mm) square
Rigid Door Spindles are for passage type, non-locking, doorknobs. 3/8-16 is a coarse thread that fits many vintage doors. Steel. Zinc plated*
additional Rigid Door Spindles 3/8-20