This is a motor mount drilled and tapped to fit the O.S. FS-120 (4-stoke), FS-120 Surpass (4-stroke), 1.40RX (2-stroke) Includes all hardware necessary for mounting the engine to a firewall and mounting the engine to the mount. The nose gear hole is not pre-drilled. INCLUDES: Four engine mounting screws (for mounting the engine to the mount) Four lock washers (for the engine mounting screws) Four blind nuts (they fit into the firewall) Four motor mount screws (for secruring the mount to the firewall) One L-wrench for the screws SPECS: Type of Material: All Aluminum mount with Steel screws and washers Type of Mount: Beam style mount with a square shaped back Length: 90mm (3-1/2") Width: 54mm (2-1/8") Height: 54mm (2-1/8") Mount to firewall screws: M5x25 caphead (coarse) Engine to mount screws: M5x20 caphead (coarse) COMMENTS: Only one of the four mounting holes to mount this to the firewall is countersunk. This is done to avoid interference with 120SIII carb This would utilize a M5x25 flathead screw which we currently do not carry. JBN 6.29.93 ir/jl updated cmc 03/19/03 updated tjt 040204