Tornado Screw 5 x 25 K73031090

The screw (part# K73031090) is the genuine Tacony 5 x 25 hex-socket screw used through the brush head of the CVD dual-motor uprights. Tacony’s dealer catalogue lists it as “SCREW 5X25 IN6RD”; the parts book writes the same number as Screw M5 x 25. Thirteen of them go into one brush head, which is why it is worth having spares on the shelf.

This is a genuine Tacony OEM part. It appears on the brush head sheet for both widths, with a quantity of thirteen.

Compatible Models for the Screw 5 x 25 K73031090

• Tornado CVD 38/2 (91440) — 15-inch dual motor HEPA
• Tornado CVD 48/2 (91442) — 19-inch dual motor HEPA

The same screw serves the 15-inch CVD 38/2 and the 19-inch CVD 48/2.

What the screw does

It holds the brush-head assembly together — covers, housing and mounting hardware. Nothing glamorous, but a head short of two or three screws flexes under load, which puts the brush geometry out and lets the suction path leak.

Signs it needs replacing

Stripped heads, rounded sockets, or screws that will no longer hold torque in their bosses. On a head that has been opened several times for brush changes, a few of the thirteen are usually past their best.

Installation and fit

Sold singly. Replace any screw whose socket has rounded rather than fighting it next time — at this price it is not worth the ten minutes you will spend extracting it later.

Frequently Asked Questions

How many does a brush head use?

Thirteen.

Is it sold singly or as a pack?

Singly. Order the quantity you need.

Why do the two sources name it differently?

Tacony’s dealer catalogue writes it as SCREW 5X25 IN6RD and the parts book as Screw M5 x 25. It is the same part number and the same screw — M5 thread, 25 mm long, hex socket drive.

Does it fit both machine widths?

Yes, the CVD 38/2 and CVD 48/2 use the same screw.