Scott- those cross hatching are epoxy filled with brass wt hangers (Do-it) size 2 as Grapenuts said They are the line tie and hook hangers... I used 2 ton Devco
... stronger than the wood when cured
1/4 x 1/2 deep hole is for the no. 2 brass eyelet....3/32 x 3/8 hole is for the next size down eyelet..no lead...the screweye in the butt is only for a small tail/flag...just screw it in.