2603345000 supersedes older part numbers: 3603345016

Original Bosch knurled round nut — part no. 2603345000 — a direct-fit replacement designed to secure the slide-switch/knob assembly on compatible Bosch power tools.

Tactile knurled outer for easy hand-tightening and a precision bore to locate and clamp the switch or spindle squarely; listed in Bosch power tool parts price/parts lists as a " knurled  round nut."

Example fitment: shown on the exploded parts list for the Bosch GSG 300 (type 0601575141) foam cutter (listed as knurled nut, reference no. 45), so it’s ideal if you’re replacing a worn or lost switch nut on that model.

If you want a genuine Bosch replacement that restores correct switch retention and feel, this original Bosch nut (2603345000) is the small, exact part that does the job of Bosch power tool parts you can rely on.