Maytronics Dolphin M200 screw KA50X40 - 3305040-A

Maytronics Dolphin M200 screw KA50X40

This is a genuine Maytronics OEM pan-head self-tapping screw, designation KA50X40, supplied as a direct replacement fastener for the Dolphin M200 robotic pool cleaner. With a nominal thread diameter of 5.0 mm and a 40 mm shank length, it cuts its own thread on assembly and delivers a secure, vibration-resistant fixing within the robot’s plastic casing and internal subassemblies.

Function and role in the robot

Self-tapping pan-head screws of this class are used throughout the Dolphin M200 chassis to clamp panels, covers, motor housings and internal brackets to one another. The pan head presents a wide, flat bearing surface that distributes clamping load across the plastic substrate without cracking or deforming it — essential in an appliance that operates under constant water pressure and mechanical vibration.

Models compatibles

This fastener is listed under the Maytronics Dolphin M200 CLI CART. CB parts catalogue. Where the same screw specification appears across the Dolphin platform, it may also be used in other contemporaneous Dolphin models that share the same chassis architecture; always cross-reference your parts diagram before ordering to confirm fitment.

When to replace this screw

Replace this screw if it is found to be stripped, corroded, or missing during routine maintenance or a casing repair. A loose or absent fastener allows panels to flex under suction pressure, risks water ingress into sealed compartments, and can cause progressive damage to the surrounding plastic threads — making prompt replacement essential.

Why genuine Maytronics parts matter

Aftermarket self-tapping screws may differ subtly in thread pitch, head geometry or material grade, causing the screw to cross-thread, under-torque, or corrode prematurely in a chlorinated pool environment. This genuine Maytronics part is manufactured to the exact specification of the original, ensuring correct fit, full clamping load and long-term corrosion resistance.