Elma (020-1220) Knob Round Shaft 3.175 mm

Elma (020-1220) – Round Shaft Knob, 3.175mm

The Elma 020-1220 is a black round knob (without indicator line) made of nylon (polyamide) with a glossy finish. It has a compact 9mm knob diameter — the smallest size in the Classic Collet range — and is designed for a 3.175mm round shaft, fixed onto the shaft using the proven collet tightening method. Its small footprint makes it ideal for space-constrained panel and instrument controls.

Quick spec sheet:

• Shaft type: Round
• Shaft diameter: 3.175mm
• Knob diameter: 9mm
• Material: Nylon (Polyamide)
• Style: Round, without indicator line
• Mounting: Collet tightening
• Color: Black, glossy finish
• Compliance: No SVHC (as of 15-Jan-2018)