knobs Sourcing Overview

Material Selection Risks Overlooking the differences between stainless steel and zinc alloy can lead to premature wear or corrosion, especially in high-use environments; stainless steel generally offers superior durability compared to zinc alloy for knobs.

Specify Product Type Clearly Negotiate exact product categories such as window handles versus furniture knobs to ensure the supplier understands your functional requirements and avoids misdeliveries.

Surface Treatment Preferences in Practice Experienced buyers know that mirror polish provides a premium look but may show fingerprints easily, while sand blast and electroplating offer more matte finishes that better hide wear and scratches.

Door Thickness Compatibility Matters A critical question to pose is whether the knobs can be customized to fit door thicknesses ranging from 35-50 mm or standard sizes like 1-3/8" to 2", as mismatches here can increase installation costs or cause functional issues.