This is the cleat that secures the horn wire as it exits the bottom of the steering box, it also purposes to secure two of the steering box bottom plate bolts.
VW Splitscreen Transporter 22mm Link Pin 1963-1967
VW Splitscreen Transporter Brake Fluid Reservoir 1966-1967
VW Splitscreen Transporter Pop Out Frame Hinge 1955 - 1967 221809179
VW Splitscreen Transporter Pop Out Hinge Fixing Kit Standard 1950-1967
VW Splitscreen Transporter Pop Out Hinge Fixing Kit Oversize 1950-1967
VW Splitscreen Transporter Quarter Light Catch Fixing Kit 1952-1967