Tornado Strike Screw M4 x 25, Handle K73062110

The M4 x 25 mm Handle Screw (part# K73062110) is the machine screw that clamps the Tornado Strike’s handle together. It works as a pair with the square nut, which is why the two are always changed together.

Compatible Models for the Screw M4 x 25, Handle

• Tornado Strike Cordless Upright Vacuum — Model TV190-W10-U

This is a Strike-only component: Tacony’s parts records list the Tornado Strike TV190-W10-U as the single machine that takes part# K73062110, so there is no cross-model substitution to worry about when you order it.

What the Screw M4 x 25, Handle does

Unlike the self-tapping screws that go into plastic bosses elsewhere on the machine, this one runs into a captive square nut, so the clamping load is taken by metal on metal rather than by a moulded thread. That is deliberate: the handle joint is the one an operator loads every time they pull the machine, and a plastic thread would not survive being taken apart for service more than a couple of times.

Signs the Screw M4 x 25, Handle needs replacing

Replace it when the drive recess is rounded so a driver no longer bites, when the thread is damaged or rusted, or when the screw turns without clamping — in which case check the square nut too, because a spinning nut gives exactly the same feel. Any screw that has been cross-threaded should be binned rather than re-used; it will cut a second path next time.

Fitting the Screw M4 x 25, Handle

Fit the square nut into its pocket first and hold it while the screw is started — a nut that drops out of its pocket mid-assembly means splitting the handle again. Start the screw by hand, check it runs freely, then tighten to firm. Do not overtighten: the clamping load is carried by the plastic either side of the nut, and crushing it makes the joint looser, not tighter.

Twin City Vacuum has been selling and servicing Tornado equipment since 1956. You can browse the rest of the machine on our Tornado Strike parts pages, and the manufacturer publishes specifications at tornadovac.com.

Frequently Asked Questions

What does the handle Screw M4 x 25 do on the Tornado Strike?

It clamps the handle assembly together, running into a captive square nut so the load is taken metal-to-metal rather than by a moulded thread.

How do I know if my handle Screw M4 x 25 needs replacing?

A rounded drive recess, a damaged or rusted thread, or a screw that turns without clamping — check the square nut as well, since a spinning nut feels identical.

What models is the Screw M4 x 25, Handle (part# K73062110) compatible with?

The Tornado Strike TV190-W10-U cordless upright vacuum, and only that machine. Tacony’s parts records list no other model that takes part# K73062110.

How do I order the Screw M4 x 25, Handle (part# K73062110) or get help?

You can add the Screw M4 x 25, Handle (part# K73062110) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.

Questions? Call us at 763-535-0770 or visit us at 5415 West Broadway, Crystal, MN 55428.