Bosch 2609110282 (also listed as 2 609 110 282) — conical spring washer engineered to hold axial preload in the clamping/pressure spindle area of Bosch routers. This original Bosch conical spring washer is the small tensioning washer used with the hex nut and flat washer in the GKF 600 edge router assembly (type 3 601 F0A 100 / 101 / 102) and is also shown as a fit for certain PMR 500 router types.

Why this part matters: the conical profile provides elastic compression under the nut so the spindle and clamping lever maintain consistent pressure and resist loosening from vibration — a simple, durable solution called out in the exploded parts lists. It’s sold as the single stamped spring washer you see in the parts diagram (position 35).

Fits (examples): Bosch GKF 600 (3 601 F0A 100 / 101 / 102) and compatible PMR 500 types — check your tool’s type number against the parts diagram before ordering. The part is referenced in Bosch spare-parts listings as the original Bosch conical spring washer, part no. 2609110282.

If your router shows axial play at the spindle, a loose clamping lever, or recurring nut backing-off, replacing this genuine Bosch part restores the intended preload and keeps the assembly secure.

Browse our full range of Bosch router parts.