Featuring the same dimensions as the FR Original, the Hot Rod Series Tremolo kit comes with a stock 37 mm Fat Brass Block and stainless steel screws. No copy can duplicate the double-locking design of the Floyd Rose Tremolo System that allows you to lock your guitar in tune at the nut and at the bridge-- the Floyd Rose is engineered like no other tremolo system, and the Hot Rod Series is essentially an upgraded version of the Original. Available in a variety of nut sizes that will fit practically any electric guitar, the tremolo kit contains the bridge, locking nut, springs & claw, mounting studs, and all hardware necessary for installation. The tremolo is made in Germany using hardened steel, with stainless steel screws made in the USA.
For tremolo dimensions, please see the PDF here.