Progressive 45-20-5 Replacement Steel Straight Spindle, designed with a 9/32" inch square by 5" inch long, threaded 20 threads per inch on both sides with unthreaded center. This spindle is an ideal replacement for Corbin Russwin, Yale, Marks, Norwalk, National, Baldwin, Progressive, and most vintage door knobs.
- Type: Straight Spindle
- Size: 9/32" Square x 5" Long
- 20 TPI
- Materials: Steel