EFCO 526 Series - Manual (Page 11)

EFCO 6/2012 Page 11
Series 526 Impact Installation Instructions
SECTION III: Fabrication
C. Drilling Template for Screw Spline at Verticals
Inside
Glazed
Use the interior or exterior edge of the vertical to align drill jig,
DJ28. Drill with a .221 dia. (#2) drill at darkened areas only.
526 SCREW SPLINE
526 SCREW SPLINE
526 SCREW SPLINE
Dimension taken
from top of head.
Dimension taken
from top of sill.
Dimension taken
from top of horizontal.