TL;DR
A zero-degree nozzle is the red-coded pressure washer tip that concentrates the machine's entire flow into a single pinpoint jet with no fan spread, delivering maximum impact force at the point of contact. That focus cuts caked clay off equipment, blasts rust scale from steel, and reaches high spots from the ground, and it also lacerates skin, gouges wood and vinyl, and shatters mortar joints, injuries from it are a recurring emergency-room category.
What it means
A zero-degree nozzle is the red-coded pressure washer tip that concentrates the machine's entire flow into a single pinpoint jet with no fan spread, delivering maximum impact force at the point of contact. That focus cuts caked clay off equipment, blasts rust scale from steel, and reaches high spots from the ground, and it also lacerates skin, gouges wood and vinyl, and shatters mortar joints, injuries from it are a recurring emergency-room category. Professional practice reaches for a rotating turbo tip or wider fan angle in nearly every case, and many homeowner machines now ship without one on purpose.
Where it sits in the glossary
Zero-degree nozzle is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
License: CC-BY-4.0 — quote freely with attribution to ProFix Editorial Team / ProFix Directory.