Magnet: D (Built-in), Mounting: B (Through Hole), Bore Size: 40mm, Thread: M5x0.8 (20-25 Bore); Rc (32-100 Bore), Stroke: 25mm, Body Option: C (Rubber Bumper), Locking Direction: B (Retracting Stroke Lock), Auto Switch: M9B--Solid State, Gen. Purpose, 2 Wire, Horizontal, 0.5M, Lead Wire or Prewired Connector: L (3m), Number: 3 pcs.