Tornado Screw Phillips Truss Head 1/4-20 x 1/2″ Zinc Plated 06192

A truss head is the wide, low, domed head — noticeably broader than a pan head and much flatter than a round one. Part number 06192 is the genuine OEM Phillips truss head screw, 1/4-20 by 1/2 inch, zinc plated. Note the head style: this machine also uses a hex head stainless screw of exactly the same thread and length under a different number. It also fits the Tornado 98166 20″ Marathon 800 carpet extractor (8 Gallon, 115V). It also fits the Tornado 98167 20″ Marathon 800 carpet extractor (8 Gallon, 230V).

Compatible Models for the Screw Phillips Truss Head 1/4-20 x 1/2″ Zinc Plated

This part is shared across a wide run of machines. On the Marathon 1200 family it is fitted to:

• Tornado 98168 12 Gallon Self Contained Carpet Extractor
• Tornado 98168 20″ Marathon 1200 Carpet Extractor (12 Gallon, 115V) — all series
• Tornado 98169 20″ Marathon 1200 Carpet Extractor (12 Gallon, 230V)
• Fits many other machines — call 763-535-0770 and we will confirm fitment for your machine.
• Tornado 98166 20″ Marathon 800 Carpet Extractor (8 Gallon, 115V)
• Tornado 98167 20″ Marathon 800 (8 Gallon, 230V)

The wide head is the whole point. It spreads clamping load over a large area, which is what you want through thin sheet or a soft panel where a normal head would pull through or dish the material. Substituting a standard hex or pan head in one of these positions concentrates the load on a much smaller circle and the panel deforms around it over time.

It also sits low, so it does not foul anything passing over it. Where a truss head is specified on a panel that something slides across or seats against, a taller head is not a cosmetic difference — it is an interference.

Zinc plating is the corrosion barrier and it is thin. A screw whose plating has been scraped through by a poorly fitting driver, or that shows rust spots, has lost that protection and will corrode into its thread. On a machine carrying detergent over every fastener, that is the difference between a screw that comes out at the next service and one that shears.

Order by part number rather than by size. Anyone working from a diagram sees the same nominal 1/4-20 x 1/2 inch for two different screws. If you are not sure which you are holding, look at the head: a wide shallow dome with a cross recess is this one.

Fit with a driver that fills the recess properly and stop at firm. A Phillips recess cams out at high torque by design, which protects the thread and chews the recess if you keep pushing.

Browse every assembly for this machine on the Tornado 98168 Marathon 1200 parts hub, and see the manufacturer’s range at tornadovac.com.

Frequently Asked Questions

What machines does the screw 06192 fit?

It is fitted to the Tornado 98168 12 Gallon Self Contained carpet extractor and the 98168 20″ Marathon 1200 in all series, and it is shared across many other machines. Call 763-535-0770 with your model and serial number and we will confirm fitment before you order It also fits the Tornado 98167 Marathon 800 (8 Gallon, 230V).

What is a truss head and why does it matter?

It is the wide, low, domed head — broader than a pan head and flatter than a round one. The width spreads clamping load over a large area, which is what thin sheet or a soft panel needs. A narrower head in the same position concentrates the load and the panel dishes around it over time.

How is 06192 different from the other 1/4-20 x 1/2 inch screw?

Head style and material. 06192 is a zinc-plated Phillips truss head; the other is a hex head cap screw in stainless. Same thread, same length, different part numbers. If you are unsure which you are holding, a wide shallow dome with a cross recess is this one.

How do I order the Screw Phillips Truss Head 1/4-20 x 1/2″ Zinc Plated (part# 06192) or get help?

You can add the Screw Phillips Truss Head 1/4-20 x 1/2″ Zinc Plated (part# 06192) 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.