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Sirco · Hardware & Fasteners
333B
In stock · ships from Knoxville
This is a two-piece flanged cap nut designed for hub-piloted disc wheels on heavy-duty trucks and trailers.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 6 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Ford
Freightliner
International
Kenworth
Mack Trucks
Other applications
Ford
Freightliner
International
Kenworth
Mack Trucks
Other applications
Fits M22 x 1.5 wheel studs only. Not for use on ball-seat or older hub-pilot (1.5-inch) wheels. Always verify stud thread pitch and diameter before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 39.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It threads onto M22 x 1.5 wheel studs and uses a 33 mm hex for tightening. The nut secures the wheel to the hub, and its Teflon coating helps resist corrosion and maintain consistent clamping force. Replace these nuts whenever they show signs of galling, thread damage, or corrosion, or during routine wheel-end service to ensure safe operation.
Part Number: 333B
METRIC NUT
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
