Driven by passion for design & craftsmanship since 1932

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Grooved Knob

This premium solid brass back-to-back knob with extender is designed for frameless glass shower doors. Its sleek, minimal profile offers a clean, modern look while providing a secure grip. The included extender allows the knob to pair seamlessly with a back-to-back pull handle or function independently.

Glass compatibility: compatible with 3/8" to 1/2" tempered glass

Load capacity: non load bearing

Mounting applications: glass to glass

Finish options: all finishes available

Limited Lifetime Warranty

  • Durable solid brass construction for long-lasting performance and corrosion resistance

  • Back-to-back design provides grip on both sides of the glass

  • Includes extender piece for compatibility with handle combinations

  • Designed for through-glass mounting on 3/8″ to 1/2″ tempered glass

  • Sleek, low-profile aesthetic complements modern bathroom designs

  • Enhanced versatility: Use alone or paired with a pull handle for added functionality

  • Comfortable handling with a minimalist form that won’t interfere with other hardware

  • Easy installation with included extender for a clean, flush finish

  • Corrosion-resistant finish ideal for humid, high-moisture environments

  • Frameless glass shower doors in residential or hospitality settings

  • Custom glass enclosures needing both a knob and pull solution

  • Projects seeking a streamlined, space-saving hardware option

  • Shower designs where one side of the door requires a smaller grip solution

Aside from custom metals American Shower Door also offers custom powder coating - just select "custom powder coat" when ordering

Precision Craftsmanship

At American Shower Door, every hinge is precision-milled from a solid block of your chosen metal using the latest in CAD and CNC technology.
We don’t use prefabricated parts—each hinge is custom-designed and machined from scratch for exceptional fit, finish, and durability. The result is hardware that looks refined, performs flawlessly, and stands up to years of daily use.

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