GT2 16T PULLEY For 6mm Belt — Bore 4 MM

From the shop's description

GT2 16T PULLEY For 6mm Belt — Bore 4 MM is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. Specifications: Tooth width: 7.5MM Inner: 4MM – Two M4 keyhole 90° distribution Outside diameter: 16MM Tooth number: 20 Tooth pitch: 2mm Hole diameter: 4MM Flange: double 2PS Setscrews: M4X4 (Stainless steel) Material: Aluminum Product Net Weight: 4mm:4g 6.35mm:5g 8mm:7g It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.