Tornado Tempest Threaded Pin M4 x 5 K73073540

This is the M4 x 5 threaded pin used on the Tornado Tempest filter and blower assembly. Tacony publishes the size in the part description. A threaded pin — a grub or set screw — has no head, so it sits flush or below the surface of whatever it is screwed into.

What the Threaded Pin M4 x 5 Does

That headless form is the point of the part. It is used where a fastener has to clamp a component onto a shaft, or locate it, without anything standing proud to foul a moving part. On this assembly that means it sets a position and holds it, and a pin that has backed out lets the component it was holding move.

Where It Sits on the Machine

It is fitted on the filter and blower assembly on the Tempest filter and blower diagram.

Compatible Models for the Threaded Pin M4 x 5

• Tornado Tempest Wide-Area Cordless Carpet Vacuum Sweeper — Model TV400-W26-U

When to Replace It

Replace the pin if the drive socket has rounded out or the thread is damaged. A rounded socket on a headless fastener is a real nuisance to remove, so it is worth fitting a new one rather than reusing a marginal one once it is finally out.

Fitting Notes

Use a driver that fits the socket properly — a loose fit is what rounds these out. Tighten enough to clamp without stripping the M4 thread, and check the component it retains cannot move by hand before closing the assembly up.

Twin City Vacuum has been selling and servicing Tornado equipment since 1956. Browse the full Tornado Tempest parts range, or see the Tornado Tempest TV400-W26-U machine. Manufacturer information is at tornadovac.com.

Frequently Asked Questions

Why is there no price shown for this part?

Tacony does not currently publish a price for part number K73073540 in the dealer system we buy from, and we will not invent a number. Call Twin City Vacuum at 763-535-0770 with the part number and we will quote it, confirm availability and check it against your machine before anything ships.

What is a threaded pin?

It is a headless screw, often called a grub screw or set screw. It is driven with an internal socket rather than by a head, so it can sit flush or recessed. Tacony uses one here where a projecting head would foul the mechanism.

How do I order the Threaded Pin M4 x 5 (part# K73073540) or get help?

Order the Threaded Pin M4 x 5 right here on this page, or call Twin City Vacuum at 763-535-0770 and give us part number K73073540. We have been a Tornado dealer since 1956, we stock Tempest parts, and we can confirm the part against your machine before it ships. You can also visit the store at 5415 West Broadway, Crystal, MN 55428.

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