XFIG8WRTU…Desk Top Table Top Fastener. Used to join desk top with pedestal base, and used in the same manner to mount table tops to table apron base. One side screws to desk pedestal, then the top is attached from underneath using the other end of the fastener. 1 5/16″long. Small End – 5/8″wide. Large End 3/4″wide. Plain steel for table tops, desk tops and others. Sold by each.