Zodiac M3 x 5 mm lower fixing screw pack of 2 – R0742400

Zodiac M3 x 5 mm lower fixing screw pack of 2 R0742400

The Zodiac M3 x 5 mm lower fixing screw pack of 2 R0742400 is the original hardware used to secure the lower parts of the housing and internal supports in selected Zodiac Tri and Hydroxinator control units. With the correct M3 x 5 mm size and head design, these screws restore a firm, vibration resistant fixation whenever the original fasteners are damaged or missing.

Main features of the Zodiac M3 x 5 mm screw set

• Original Zodiac M3 x 5 mm fixing screws for lower mounting points in the control unit.
• Pack of two screws for replacing missing or corroded original hardware.
• Correct thread and length for plastic and metal mounting points specified by Zodiac.
• Designed for use inside pool technical rooms with warm and humid conditions.

Compatibility and typical applications

The R0742400 screw set is used wherever the exploded view of the chlorinator shows “tornillo M3 x 5 mm de fijación inferior” with this reference. These screws often secure the lower part of the casing or internal brackets that support electronic modules.

• Suitable for Zodiac Tri salt chlorinators that list R0742400 as lower fixing screws.
• Used on Tri Expert and Tri Expert LS units sharing the same chassis layout.
• Also found on Hydroxinator and Hydroxinator MagnaPool models that use Tri style housings.

Before ordering, check the spare parts diagram of your specific model. If R0742400 appears as the M3 x 5 mm lower fixing screw, this pack of two is the correct replacement.

When to replace the lower fixing screws

Screws can become worn, corroded or lost during servicing of the control unit. Missing or damaged lower fixing screws can leave covers or supports loose, which may cause vibration, noise or stress on internal components.

• Replace screws that are rusty, bent or stripped and no longer tighten correctly.
• Use this set when reassembling the housing after replacing boards, covers or brackets.
• Restore any missing screws so that all lower mounting points are used as designed.

Installation guidelines

Installing the Zodiac M3 x 5 mm lower fixing screw pack of 2 R0742400 is straightforward and should always be done with the chlorinator disconnected from the mains.

• Isolate the control unit from the power supply before opening or handling the housing.
• Align the lower cover or bracket so that all mounting holes line up with the chassis.
• Insert each M3 x 5 mm screw by hand to start the thread and avoid cross threading.
• Tighten gently with a suitable screwdriver until the part is secure, without over tightening or deforming the plastic.
• Check that the cover or support sits firmly and that there is no unwanted movement.

With original Zodiac R0742400 screws fitted, the lower fixing points of the Tri or Hydroxinator control unit are correctly secured, helping to protect the internal electronics and maintain a neat, stable housing.