Bolt 1/4-20 x 1/2″ Self Locking Flange X8209S
$2.99
Genuine Tacony OEM 1/4-20 x 1/2 inch self-locking flange bolt (part# X8209S) for the Tornado Marathon SE 900 (Model 98170) and Powr-Flite Prowler PFX900S chassis. Flange and locking feature built into the head, so no washer is needed.
The Bolt 1/4-20 x 1/2″ Self Locking Flange (part# X8209S) is a genuine Tacony OEM replacement part from the chassis assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the flanged 1/4-20 bolt whose integral serrated flange both spreads the load and resists loosening.
What the Bolt 1/4-20 x 1/2″ Self Locking Flange does
This bolt replaces three parts with one. The flange under the head does what a washer would do, spreading clamping load over a wider area, and its serrated underside bites the surface the way a lock washer would. Fewer loose pieces on a chassis joint means fewer things to drop into the machine during a repair and one less item to forget on reassembly.
When to replace the Bolt 1/4-20 x 1/2″ Self Locking Flange (X8209S)
Replace it when the serrations under the flange are worn smooth, when the flange is bent or the head drive is rounded, or when the thread is damaged. A flange bolt that no longer leaves witness marks on the surface has lost its locking action and is just a bolt.
Bolt Self Locking X8209S — fitment and installation notes
Do not add a washer under it, because a washer between the serrations and the part defeats the whole design. Make sure the bearing surface is clean and free of paint build-up so the serrations can bite, and tighten to a firm seat rather than relying on extra torque to hold the joint. Tacony builds the Tornado Marathon SE 900 and the Powr-Flite Prowler PFX900S on a single machine platform, so this component carries across both brands rather than belonging to either one. It is a shared Tacony component and may fit additional models beyond those listed — call us and we will confirm against your serial number.
Compatible Models for the Bolt 1/4-20 x 1/2″ Self Locking Flange
- Tornado Marathon SE 900 — Model 98170
- Powr-Flite Prowler PFX900S
- Powr-Flite PFX900SG
Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine Tacony parts and ship nationwide. Browse the full Tornado 98170 parts catalogue, or see the manufacturer at tornadovac.com.
Frequently Asked Questions
What does the Bolt 1/4-20 x 1/2″ Self Locking Flange do on the Tornado Marathon SE 900?
This bolt replaces three parts with one. The flange under the head does what a washer would do, spreading clamping load over a wider area, and its serrated underside bites the surface the way a lock washer would. Fewer loose pieces on a chassis joint means fewer things to drop into the machine during a repair and one less item to forget on reassembly.
How do I know if my Bolt 1/4-20 x 1/2″ Self Locking Flange needs replacing?
Replace it when the serrations under the flange are worn smooth, when the flange is bent or the head drive is rounded, or when the thread is damaged. A flange bolt that no longer leaves witness marks on the surface has lost its locking action and is just a bolt.
What models is the Bolt 1/4-20 x 1/2″ Self Locking Flange (part# X8209S) compatible with?
The Tornado Marathon SE 900 (Model 98170), the Powr-Flite Prowler PFX900S and the PFX900SG. It is a shared Tacony part and may fit further models; call us to confirm.
How do I order the Bolt 1/4-20 x 1/2″ Self Locking Flange (part# X8209S) or get help?
You can add the Bolt 1/4-20 x 1/2″ Self Locking Flange (part# X8209S) 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.
