Spacer grid

A spacer grid comprising:

• interlocked straps comprising metal sheets or plates welded together to define a spacer grid having a top and bottom, the interlocked straps defining a plurality of cells comprising vertical passages connecting the top and bottom of the spacer grid, the cells including:
• upper dimples disposed proximate to the top of the spacer grid and distal from a mid-plane of the spacer grid,
• lower dimples disposed proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid,
• cantilevered upper springs having fuel rod engagement surfaces disposed proximate to the top of the spacer grid and distal from the mid-plane of the spacer grid, and
• cantilevered lower springs having fuel rod engagement surfaces disposed proximate to the bottom of the spacer grid and distal from the mid-plane of the spacer grid,
• wherein the upper springs and the lower springs are anchored to the straps by a single base that is in a plane of its corresponding strap at the mid-plane of the spacer grid.