FHWA-HRT-04-098-Chapter 14. Connections-Covered Bridge Manual-APRIL 2005
This common repair method was rarely used in original construction. The two timbers of the butt joint do not touch but are held in tension by steel fish (splice) plates with through connectors on the transverse plane. The drawing shows a nut on the opposite side of the square-headed threaded bolt to hold the screw.