At 2.8" (70mm) long and with a 3/8"-16 screw, the Toyo-View #180-749 Anti-Twist Tripod Mounting Plate for the 810MII Field Camera is standard on their 8x10 field camera and is available here as a replacement for a lost or damaged plate. This plate interfaces with the #180-724 tripod mounting block, and for greater stability at long extension you can use this pair upon the smaller 4x5 and 5x7 view cameras as well.
Standard anti-twist plate supplied to the body of the 810MII 8x10 field camera
In the Box
Toyo-View Anti-Twist Tripod Mounting Plate for the 810MII Field Camera