LCN tbtrx thicknees

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Thru-Bolt, ‘Torx’ Machine Screws
If using the LCN pneumatic control box as the air source for the Von Duprin Pneumatic devises then you have to use the LCN 925 tubing because of the size of air line fitting on the LCN co...
The only spring size available is a size 4 (2314ME, 4314ME, 4414ME) which has a stronger spring to help insure that the door will close in a fire situation.