▪ Magnet: D (Built-in)▪ Mounting: B (Through Hole [Standard])▪ Type: Standard▪ Bore Size: 20mm▪ Port Thread Type: Rc: 32-100 Bore▪ M Thread 12 to 25 Bore;Lube-retainer: Without Stable Lubrication Function▪ Stroke: 10▪ Body Option: C (Rubber Bumper)▪ Auto Switch Groove: Z (Auto Switch Mounting Grooves)▪ Auto Switch: No Switch▪ Lead Wire or Prewired Connector: 0.5m or None in the Case of No Switch▪ Number: 2 pcs. or None in the Case of No Switch