Tornado Zephyr Screw M5 x 30 K73030860

The M5 x 30 screw (part# K73030860) is the long fastener the Tornado Zephyr uses through the battery rail and body — seven of them on the main unit sheet.

This is a genuine Tacony OEM part for the Tornado Zephyr. Seven are used on this machine.

Compatible Models for the Screw M5 x 30 K73030860

• Tornado: TV570-Q03-U Zephyr cordless backpack vacuum

PartSmart lists this part on the Zephyr and on no other machine, so the fit is specific rather than shared. If your machine is a different Tornado cordless model, call 763-535-0770 with the model number and we will find the right part for it.

What the screw m5 x 30 does

Long screws in plastic do a specific job: they clamp several layers together and hold their thread over a long engagement so the joint does not loosen under vibration. On the Zephyr these are what keep the battery rail and body panels tight while the machine is being swung on and off a back all day.

Signs it needs replacing

Replace any screw with a rounded drive, a damaged thread, or corrosion. They cost pennies, and a chewed screw head turns a five-minute repair into a drilling job. If a screw no longer bites, the boss it threads into may be stripped — check that before blaming the screw.

Installation and fit

Start every screw by hand to find the existing thread, then tighten firmly without forcing. Over-torquing into plastic strips the boss, and a stripped boss means a new panel rather than a new screw.

Frequently Asked Questions

How many does the machine use?

Seven on the main unit sheet. They are sold individually, so order the quantity you need.

Can I substitute a hardware-store M5?

Thread pitch and head form matter in plastic bosses. A generic screw often cuts a second thread and ruins the boss. Use the Tacony part.

Is there a torque spec?

Nothing published for this fastener. Firm by hand with a driver, no impact tools.

Which machines use it?

The Tornado Zephyr TV570-Q03-U only.