Magnet D (Built-in) Mounting B (Through Hole [Standard 12 through 63 Bore])-Bore Size 20mm Port Thread Type Rc: 32-100 Bore M Thread 12 to 25 Bore-Stroke 10 Body Option Standard (Rod End Female Thread) 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 Rod End Options None