Elma (020-4510) Round Shaft Knob, 6.35mm, Precision Control Knob
Elma 020-4510 – Round Shaft Knob, 6.35mm
The Elma 020-4510 is a grey round knob made of nylon (polyamide) with a glossy finish. It has a 21mm knob diameter and is designed for a 6.35mm round shaft, fixed onto the shaft using the proven collet tightening method — offering precise, secure control for panel and instrument applications.
Quick spec sheet: